CVE-2026-43387

CVEs › CVE-2026-43387

Description

In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: properly validate the data in rtw_get_ie_ex() Just like in commit 154828bf9559 ("staging: rtl8723bs: fix out-of-bounds read in rtw_get_ie() parser"), we don't trust the data in the frame so we should check the length better before acting on it

Overview

State: PUBLISHED
Assigner (CNA): Linux
CVSS severity: high
CVSS score: 7.1 / 10
CVSS vector: AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Effective score: 7.1 / 10 HIGH source: CNA overview
CWE(s): —
Reserved: 2026-05-01
Published: 2026-05-08 16:21 UTC
Last updated: 2026-05-12 00:23 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/43xxx/CVE-2026-43387.json
Linked Threat: CVE-2026-43387 — CVE-2026-43387

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published: 2026-05-08 15:16:50 UTC
NVD last modified: 2026-05-12 14:10:27 UTC
EPSS score: 0.0003 (probability of exploitation in next 30 days)
EPSS percentile: 9.59% vs all CVEs — higher = more likely to be exploited, as of 2026-05-24

NVD / KEV / EPSS data refreshed 2026-05-25 08:56 UTC. Re-run the 🛰 Backfill from NVD button above to refresh.

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID: EUVD-2026-28693
Assigner: Linux
Published: May 8, 2026, 2:21:33 PM
Updated: May 11, 2026, 10:23:36 PM
EUVD base score: 0.0 / 10
EUVD-reported EPSS: 0.0100
Vendors: Linux
Products: Linux (1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <821f7d759fb2de33c5e5b0c4981181c4d0c3e9b1)

Linux (patch: 0)

Linux (1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <6d62fa548387e159a21ea95132c09bfc96d336ed)

Linux (554c0a3abf216c991c5ebddcdb2c08689ecd290b <740bca8bbdb707c0e4bb11e3316deb2f04fc7ce1)

Linux (1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <740bca8bbdb707c0e4bb11e3316deb2f04fc7ce1)

Linux (1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <9a4cd4c37593cc8b8d28f9a6732b490a8032006a)

Linux (554c0a3abf216c991c5ebddcdb2c08689ecd290b <35969c3a208a07cb8642301df5869c34e2db7071)

Linux (patch: 6.12.78)

Linux (patch: 6.1.167)

Linux (patch: 6.19.9)

Linux (patch: 6.18.19)

Linux (patch: 5.10.253)

Linux (1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <f0109b9d3e1e455429279d602f6276e34689750a)

Linux (554c0a3abf216c991c5ebddcdb2c08689ecd290b <6d62fa548387e159a21ea95132c09bfc96d336ed)

Linux (554c0a3abf216c991c5ebddcdb2c08689ecd290b <9a4cd4c37593cc8b8d28f9a6732b490a8032006a)

Linux (patch: 5.15.203)

Linux (1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <ac38856092b4c994f94343251b30520bdeb7f475)

Linux (554c0a3abf216c991c5ebddcdb2c08689ecd290b <8097a48c606a9306281ea7bd73bf2afc97553733)

Linux (1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <35969c3a208a07cb8642301df5869c34e2db7071)

Linux (554c0a3abf216c991c5ebddcdb2c08689ecd290b <821f7d759fb2de33c5e5b0c4981181c4d0c3e9b1)

Linux (554c0a3abf216c991c5ebddcdb2c08689ecd290b <f0109b9d3e1e455429279d602f6276e34689750a)

Linux (1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <8097a48c606a9306281ea7bd73bf2afc97553733)

Linux (554c0a3abf216c991c5ebddcdb2c08689ecd290b <ac38856092b4c994f94343251b30520bdeb7f475)

Linux (patch: 6.6.130)

Linux (patch: 7.0)

Linux (4.12)

ENISA description: In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: properly validate the data in rtw_get_ie_ex() Just like in commit 154828bf9559 ("staging: rtl8723bs: fix out-of-bounds read in rtw_get_ie() parser"), we don't trust the data in the frame so we should check the length better before acting on it

EUVD references (8)

Affected products (2)

Vendor	Product	Versions	Platforms
Linux	Linux	`554c0a3abf216c991c5ebddcdb2c08689ecd290b` (affected), `554c0a3abf216c991c5ebddcdb2c08689ecd290b` (affected), `554c0a3abf216c991c5ebddcdb2c08689ecd290b` (affected), `554c0a3abf216c991c5ebddcdb2c08689ecd290b` (affected), `554c0a3abf216c991c5ebddcdb2c08689ecd290b` (affected), `554c0a3abf216c991c5ebddcdb2c08689ecd290b` (affected), `554c0a3abf216c991c5ebddcdb2c08689ecd290b` (affected), `554c0a3abf216c991c5ebddcdb2c08689ecd290b` (affected)	—
Linux	Linux	`4.12` (affected), `0` (unaffected), `5.10.253` (unaffected), `5.15.203` (unaffected), `6.1.167` (unaffected), `6.6.130` (unaffected), `6.12.78` (unaffected), `6.18.19` (unaffected), `6.19.9` (unaffected), `7.0` (unaffected)	—

Vendor references (8)

References embedded in the original CVE record by the assigning CNA.

MITRE references (8) cveawg.mitre.org

Pulled from MITRE's CVE Services API by the 🛰 Backfill from MITRE button.

Web references (5)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

https://attackerkb.com/topics/CVE-2026-43387 rapid7:attackerkb.com
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-28693 rapid7:euvd.enisa.europa.eu
https://www.first.org/epss/ tenable:www.first.org
https://nvd.nist.gov/vuln/detail/CVE-2026-43387 tenable:nvd.nist.gov
https://www.cve.org/CVERecord?id=CVE-2026-43387 tenable:www.cve.org

NVD-tagged references (8)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

https://git.kernel.org/stable/c/35969c3a208a07cb8642301df5869c34e2db7071 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/6d62fa548387e159a21ea95132c09bfc96d336ed 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/740bca8bbdb707c0e4bb11e3316deb2f04fc7ce1 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/8097a48c606a9306281ea7bd73bf2afc97553733 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/821f7d759fb2de33c5e5b0c4981181c4d0c3e9b1 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/9a4cd4c37593cc8b8d28f9a6732b490a8032006a 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/ac38856092b4c994f94343251b30520bdeb7f475 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/f0109b9d3e1e455429279d602f6276e34689750a 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Remediations (16)

Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.

Microsoft and Adobe Patch Tuesday, April 2026 Security Update Review

web:blog.qualys.com

With Qualys Policy Audit's out-of-the-box mitigation or Compensatory Controls, which reduce the risk of a vulnerability being exploited because the remediation ( fix / patch ) cannot be done immediately, these security controls are not recommended by any industry standards, such as CIS and DISA-STIG.

2026-05-23 21:05 UTC
Microsoft Patch Tuesday for May 2026 — Snort rules and prominent ...

web:blog.talosintelligence.com

Microsoft has released its monthly security update for May 2026 , which includes 137 vulnerabilities affecting a range of products, including 16 that Microsoft marked as "critical".

2026-05-23 21:05 UTC
Microsoft Patch Tuesday March 2026 - 78 Vulnerabilities Fixed ...

web:cybersecuritynews.com

Microsoft released its March 2026 Patch Tuesday security update on March 10, 2026 , addressing 78 vulnerabilities across Windows, Microsoft Office, Azure, SQL Server, and .NET. The update includes one actively exploited zero-day vulnerability and multiple Critical-rated flaws demanding immediate attention from security teams. The most urgent fix this month is CVE - 2026 -21262, the sole zero-day ...

2026-05-23 21:05 UTC
Patch Tuesday, May 2026 Edition - Krebs on Security

web:krebsonsecurity.com

Microsoft expects that exploitation is more likely. May's Patch Tuesday is a welcome respite from April, which saw Microsoft fix a near-record 167 security flaws.

2026-05-23 21:05 UTC
Nvd - Cve-2026-35387

web:nvd.nist.gov

An official website of the United States government Here's how you know

2026-05-23 21:05 UTC
Security Update Guide - Microsoft

web:portal.msrc.microsoft.com

The Security Update Guide provides information on the latest Microsoft security updates, helping users understand and address potential vulnerabilities effectively.

2026-05-23 21:05 UTC
A guide to vulnerability remediation vs mitigation | @Bugcrowd

web:www.bugcrowd.com

Vulnerability mitigation is typically considered a temporary or interim solution. While mitigation measures can reduce the immediate risk associated with vulnerabilities, they may not provide a permanent fix . Organizations should aim to prioritize and plan for complete vulnerability remediation whenever feasible and allocate resources accordingly.

2026-05-23 21:05 UTC
Microsoft Confirms Global SharePoint Attack — Emergency ... - Forbes

web:www.forbes.com

Microsoft has confirmed that SharePoint Server is under mass global attack. Breaking: An emergency patch has now been released — update immediately.

2026-05-23 21:05 UTC
Oracle Critical Patch Update Advisory - April 2026

web:www.oracle.com

This Critical Patch Update contains 481 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at April 2026 Critical Patch Update: Executive Summary and Analysis.

2026-05-23 21:05 UTC
Windows 11 April 2026 Update tested: What's new, improved and fixed

web:www.windowslatest.com

Windows 11 April 2026 update adds Narrator Copilot support, faster Settings, File Explorer fixes, and key security improvements.

2026-05-23 21:05 UTC
Windows Kerberos RC4 deprecation: what will break in Active ... - 4sysops

web:4sysops.com

Starting in April 2026 , Windows updates will change the default Kerberos ticket issuance behavior to AES-SHA1 for accounts without explicit encryption settings, while RC4 can still be used where explicitly enabled. This change, driven by CVE - 2026 -20833, affects every Windows Server environment where service accounts or devices still rely on RC4. Any service account, NAS device, or legacy ...

2026-05-26 02:47 UTC
Microsoft and Adobe Patch Tuesday, February 2026 Security Update Review

web:blog.qualys.com

Microsoft's February 2026 Patch Tuesday focuses on closing security gaps that attackers could exploit, reinforcing the importance of timely patching in enterprise environments. Here's a quick…

2026-05-26 02:47 UTC
Security Advisory Bulletin 064 | Ubiquiti Community

web:community.ui.com

Published: May 21, 2026 Updated: May 22, 2026 Version: 1.1 Revision: 1.1 Summary 1 of 5 A malicious actor with access to the network and high privileges could exploit an Improper Input Validation vulnerability found in UniFi OS devices to execute a Command Injection. Affected Products: UniFi OS Server (Version 5.0.6 and earlier) Mitigation : Update your UniFi OS Server to Version 5.0.8 or later ...

2026-05-26 02:47 UTC
March 23, 2026—Hotpatch KB5085518 (OS Builds 26200.7985 and 26100.7985 ...

web:support.microsoft.com

This out-of-band update for Windows 11, version 25H2 and 24H2 (KB5085518) includes fixes and improvements. To learn more about differences between security updates, optional non-security preview updates, out-of-band (OOB) updates, and continuous innovation, see Windows monthly updates explained. For information on Windows update terminology, see the different types of Windows software updates ...

2026-05-26 02:47 UTC
Microsoft fixes 167 security flaws in April, second biggest Patch ...

web:www.pcworld.com

This month's Patch Tuesday includes an actively exploited Office zero-day vulnerability and several critical RCE bugs in Windows and Remote Desktop.

2026-05-26 02:47 UTC
Microsoft Issues Massive Windows Patch for 160+ Bugs ... - TechRepublic

web:www.techrepublic.com

Microsoft's April 2026 Patch Tuesday fixes 165 vulnerabilities, including two zero-days, in one of the company's largest monthly security updates.

2026-05-26 02:47 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-43387.json.

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/staging/rtl8723bs/core/rtw_ieee80211.c"
          ],
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              "versionType": "git"
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            },
            {
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          ],
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          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.12"
            },
            {
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
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            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
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            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
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            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
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            },
            {
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              "status": "unaffected",
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            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.19",
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            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.9",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
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                },
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                },
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                },
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                },
                {
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                  "versionEndExcluding": "7.0",
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                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: rtl8723bs: properly validate the data in rtw_get_ie_ex()\n\nJust like in commit 154828bf9559 (\"staging: rtl8723bs: fix out-of-bounds\nread in rtw_get_ie() parser\"), we don't trust the data in the frame so\nwe should check the length better before acting on it"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T22:23:36.159Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/ac38856092b4c994f94343251b30520bdeb7f475"
        },
        {
          "url": "https://git.kernel.org/stable/c/35969c3a208a07cb8642301df5869c34e2db7071"
        },
        {
          "url": "https://git.kernel.org/stable/c/8097a48c606a9306281ea7bd73bf2afc97553733"
        },
        {
          "url": "https://git.kernel.org/stable/c/740bca8bbdb707c0e4bb11e3316deb2f04fc7ce1"
        },
        {
          "url": "https://git.kernel.org/stable/c/821f7d759fb2de33c5e5b0c4981181c4d0c3e9b1"
        },
        {
          "url": "https://git.kernel.org/stable/c/6d62fa548387e159a21ea95132c09bfc96d336ed"
        },
        {
          "url": "https://git.kernel.org/stable/c/9a4cd4c37593cc8b8d28f9a6732b490a8032006a"
        },
        {
          "url": "https://git.kernel.org/stable/c/f0109b9d3e1e455429279d602f6276e34689750a"
        }
      ],
      "title": "staging: rtl8723bs: properly validate the data in rtw_get_ie_ex()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-43387",
    "datePublished": "2026-05-08T14:21:33.323Z",
    "dateReserved": "2026-05-01T14:12:56.006Z",
    "dateUpdated": "2026-05-11T22:23:36.159Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}