CVE-2026-43005
📛 CVE Title
hwmon: (tps53679) Fix array access with zero-length block read
Description
In the Linux kernel, the following vulnerability has been resolved: hwmon: (tps53679) Fix array access with zero-length block read i2c_smbus_read_block_data() can return 0, indicating a zero-length read. When this happens, tps53679_identify_chip() accesses buf[ret - 1] which is buf[-1], reading one byte before the buffer on the stack. Fix by changing the check from "ret < 0" to "ret <= 0", treating a zero-length read as an error (-EIO), which prevents the out-of-bounds array access. Also fix a typo in the adjacent comment: "if present" instead of duplicate "if".
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
- 2026-05-01 16:15 UTC
- Last updated
- 2026-05-12 00:15 UTC
- Source
- https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/43xxx/CVE-2026-43005.json
- Linked Threat
- CVE-2026-43005 — CVE-2026-43005
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
- 2026-05-01 15:16:44 UTC
- NVD last modified
- 2026-05-12 19:27:29 UTC
- NVD CVSS v3.1
- 7.1 / 10 HIGH source: nvd@nist.gov
- NVD CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H- Exploitability subscore
- 1.8 / 10
- Impact subscore
- 5.2 / 10
- EPSS score
- 0.0001 (probability of exploitation in next 30 days)
- EPSS percentile
- 2.29% vs all CVEs — higher = more likely to be exploited, as of 2026-05-24
NVD-assigned CWE(s):
CWE-125
(differs from the CNA list above)
NVD / KEV / EPSS data refreshed 2026-05-25 09:21 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-2026-26604 - Assigner
- Linux
- Published
- May 1, 2026, 2:15:13 PM
- Updated
- May 11, 2026, 10:15:51 PM
- EUVD base score
- 0.0 / 10
- EUVD-reported EPSS
- 0.0100
- Vendors
- Linux
- Products
-
Linux (patch: 6.18.22)Linux (75ca1e5875fe3f0b9d0e8615c69f49bc2c7fb65d <79b7e588399bb55f4c10bea6ca41b6c3b944d2bb)Linux (patch: 7.0)Linux (75ca1e5875fe3f0b9d0e8615c69f49bc2c7fb65d <0e211f6aaa6a00fd0ee0c1eea5498f168c6725e6)Linux (patch: 0)Linux (patch: 6.19.12)Linux (6.17)Linux (75ca1e5875fe3f0b9d0e8615c69f49bc2c7fb65d <6999b4769e2a61c463158927102e8c07e3f69ba2)
ENISA description: In the Linux kernel, the following vulnerability has been resolved: hwmon: (tps53679) Fix array access with zero-length block read i2c_smbus_read_block_data() can return 0, indicating a zero-length read. When this happens, tps53679_identify_chip() accesses buf[ret - 1] which is buf[-1], reading one byte before the buffer on the stack. Fix by changing the check from "ret < 0" to "ret <= 0", treating a zero-length read as an error (-EIO), which prevents the out-of-bounds array access. Also fix a typo in the adjacent comment: "if present" instead of duplicate "if".
Affected products (2)
| Vendor | Product | Versions | Platforms |
|---|---|---|---|
| Linux | Linux |
75ca1e5875fe3f0b9d0e8615c69f49bc2c7fb65d (affected),
75ca1e5875fe3f0b9d0e8615c69f49bc2c7fb65d (affected),
75ca1e5875fe3f0b9d0e8615c69f49bc2c7fb65d (affected)
|
— |
| Linux | Linux |
6.17 (affected),
0 (unaffected),
6.18.22 (unaffected),
6.19.12 (unaffected),
7.0 (unaffected)
|
— |
Affected products — CPE 2.3 (8) NVD
NVD's normalized CPE 2.3 matchers, used by vendor tools (vulnerability scanners, asset managers) for automated detection. Compare with the CNA's free-text "Affected products" section above.
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.17:-:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*
Vendor references (3)
References embedded in the original CVE record by the assigning CNA.
Web references (6)
DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.
- https://git.kernel.org/stable/c/0e211f6aaa6a00fd0ee0c1eea5498f168c6725e6 tenable:git.kernel.org
- https://git.kernel.org/stable/c/6999b4769e2a61c463158927102e8c07e3f69ba2 tenable:git.kernel.org
- https://git.kernel.org/stable/c/79b7e588399bb55f4c10bea6ca41b6c3b944d2bb tenable:git.kernel.org
- https://nvd.nist.gov/vuln/detail/CVE-2026-43005 tenable:nvd.nist.gov
- https://www.cve.org/CVERecord?id=CVE-2026-43005 tenable:www.cve.org
- https://www.first.org/epss/ tenable:www.first.org
NVD-tagged references (3)
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/0e211f6aaa6a00fd0ee0c1eea5498f168c6725e6 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
- https://git.kernel.org/stable/c/6999b4769e2a61c463158927102e8c07e3f69ba2 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
- https://git.kernel.org/stable/c/79b7e588399bb55f4c10bea6ca41b6c3b944d2bb 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
Remediations (19)
Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.
-
web:access.redhat.com
The mitigation methods below address both vulnerabilities that affect Red Hat products — CVE - 2026 -43284 (IPsec ESP) and CVE - 2026 -46300 (XFRM ESP-in-TCP). CVE - 2026 -43500 (rxrpc) does not affect Red Hat products and requires no mitigation .
2026-05-23 20:23 UTC -
web:cyberpress.org
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added two actively exploited Microsoft Defender vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog, issuing an urgent remediation directive for federal agencies with a due date of June 3, 2026 .
2026-05-23 20:23 UTC -
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 20:23 UTC -
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 20:23 UTC -
web:socprime.com
Explore Detections CVE - 2026 -43500 and CVE - 2026 -43284 Mitigation Practical CVE - 2026 -43500 mitigation starts with reducing available attack paths before a vendor patch is fully available across environments.
2026-05-23 20:23 UTC -
web:www.bleepingcomputer.com
CISA has ordered U.S. federal agencies to patch a Microsoft Defender privilege escalation flaw (dubbed BlueHammer) that has been exploited in zero-day attacks.
2026-05-23 20:23 UTC -
web:www.cisecurity.org
<p>Multiple vulnerabilities have been discovered in Microsoft products, the most severe of which could allow for remote code execution. Successful exploitation of the most severe of these vulnerabilities could result in an attacker gaining the same privileges as the logged-on user. Depending on the privileges associated with the user, an attacker could then install programs; view, change, or ...
2026-05-23 20:23 UTC -
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 20:23 UTC -
web:www.picussecurity.com
The exploit, referred to as "BlueHammer", was released prior to the availability of an official fix , making it a true zero-day at the time of disclosure. In this blog, we explain how the Windows Defender CVE - 2026 -33825 vulnerability works, its real-world risk to organizations, and provide practical steps for validation and remediation .
2026-05-23 20:23 UTC -
web:zecurit.com
Get the complete breakdown of Microsoft's May 2026 Patch Tuesday. We analyze the latest security updates and all critical CVEs .
2026-05-23 20:23 UTC -
web:blog.qualys.com
RedSun is a zero-day LPE in Microsoft Defender with no patch available. Learn how to detect and mitigate it instantly using Qualys VMDR and TruRisk™ Eliminate.
2026-06-03 07:49 UTC -
web:cybersecuritynews.com
Microsoft's May 2026 Patch Tuesday lands with a heavy enterprise focus, fixing 120 vulnerabilities across Windows, Office, Azure, developer tools, and Microsoft 365 apps, including 29 remote code execution (RCE) flaws rated Critical.
2026-06-03 07:49 UTC -
web:support.microsoft.com
This Hotpatch update for Windows 11, version 25H2 and 24H2 (KB5089466) includes security 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. To ...
2026-06-03 07:49 UTC -
web:support.sap.com
SAP security Patch Day Bulletin
2026-06-03 07:49 UTC -
web:thecyberexpress.com
Microsoft has rolled out its May 2026 Patch Tuesday security updates, delivering fixes for approximately 120 vulnerabilities across Windows, Microsoft Office, networking
2026-06-03 07:49 UTC -
web:www.bleepingcomputer.com
Today is Microsoft's April 2026 Patch Tuesday with security updates for 167 flaws, including 2 zero-day vulnerabilities.
2026-06-03 07:49 UTC -
web:www.bleepingcomputer.com
Today is Microsoft's May 2026 Patch Tuesday, with security updates for 120 flaws and no zero-days disclosed this month.
2026-06-03 07:49 UTC -
web:www.cve.org
At cve .org, we provide the authoritative reference method for publicly known information-security vulnerabilities and exposures
2026-06-03 07:49 UTC -
web:www.oracle.com
Oracle Critical Patch Update Advisory - January 2026 Description A Critical Patch Update is a collection of patches for multiple security vulnerabilities. These patches address vulnerabilities in Oracle code and in third party components included in Oracle products. These patches are usually cumulative, but each advisory describes only the security patches added since the previous Critical ...
2026-06-03 07:49 UTC
AI Forensic Analysis
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Raw JSON
The full cvelistV5 record. Download as CVE-2026-43005.json.
{
"containers": {
"cna": {
"affected": [
{
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"programFiles": [
"drivers/hwmon/pmbus/tps53679.c"
],
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{
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{
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"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/hwmon/pmbus/tps53679.c"
],
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"vendor": "Linux",
"versions": [
{
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},
{
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{
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},
{
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},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.0",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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{
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{
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}
],
"negate": false,
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"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: (tps53679) Fix array access with zero-length block read\n\ni2c_smbus_read_block_data() can return 0, indicating a zero-length\nread. When this happens, tps53679_identify_chip() accesses buf[ret - 1]\nwhich is buf[-1], reading one byte before the buffer on the stack.\n\nFix by changing the check from \"ret < 0\" to \"ret <= 0\", treating a\nzero-length read as an error (-EIO), which prevents the out-of-bounds\narray access.\n\nAlso fix a typo in the adjacent comment: \"if present\" instead of\nduplicate \"if\"."
}
],
"providerMetadata": {
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},
{
"url": "https://git.kernel.org/stable/c/0e211f6aaa6a00fd0ee0c1eea5498f168c6725e6"
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],
"title": "hwmon: (tps53679) Fix array access with zero-length block read",
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"cveMetadata": {
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"cveId": "CVE-2026-43005",
"datePublished": "2026-05-01T14:15:13.513Z",
"dateReserved": "2026-05-01T14:12:55.974Z",
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