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CVE-2026-8271

📛 CVE Title

D-Link DNS-320 network_mgr.cgi cgi_upnp_edit os command injection

⬇ Download JSON ⚠ View as Threat

Description

A vulnerability was identified in D-Link DNS-320 2.06B01. The impacted element is the function cgi_speed/cgi_dhcpd_lease/cgi_ddns/cgi_set_ip/cgi_upnp_del/cgi_dhcpd/cgi_upnp_add/cgi_upnp_edit of the file /cgi-bin/network_mgr.cgi. The manipulation leads to os command injection. The attack is possible to be carried out remotely. The exploit is publicly available and might be used.

Overview

State
PUBLISHED
Assigner (CNA)
VulDB
CVSS severity
MEDIUM
CVSS score
CVSS 5.1 / 10 5.1 5.1 / 10
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
Effective score
5.1 / 10 MEDIUM source: CNA overview
CWE(s)
CWE-78, CWE-77
Reserved
2026-05-10
Published
2026-05-11 06:00 UTC
Last updated
2026-05-11 12:19 UTC
Source
https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/8xxx/CVE-2026-8271.json
Linked Threat
CVE-2026-8271 — CVE-2026-8271

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.

EPSS score
0.0012 (probability of exploitation in next 30 days)
EPSS percentile
30.87% vs all CVEs — higher = more likely to be exploited, as of 2026-05-24

NVD / KEV / EPSS data refreshed 2026-05-25 06:18 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-2026-29029
Assigner
VulDB
Published
May 11, 2026, 4:00:11 AM
Updated
May 11, 2026, 10:19:22 AM
EUVD base score (CVSS 4.0)
5.1 / 10
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
EUVD-reported EPSS
0.1200
Vendors
D-Link
Products
DNS-320 (2.06B01)

ENISA description: A vulnerability was identified in D-Link DNS-320 2.06B01. The impacted element is the function cgi_speed/cgi_dhcpd_lease/cgi_ddns/cgi_set_ip/cgi_upnp_del/cgi_dhcpd/cgi_upnp_add/cgi_upnp_edit of the file /cgi-bin/network_mgr.cgi. The manipulation leads to os command injection. The attack is possible to be carried out remotely. The exploit is publicly available and might be used.

EUVD references (5)

Affected products (1)
VendorProductVersionsPlatforms
D-Link DNS-320 2.06B01 (affected) —

Vendor references (5)

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

MITRE references (5) cveawg.mitre.org

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

Web references (3)

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

Remediations (19)

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

  • 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…

    2026-05-23 21:02 UTC
  • NVD - cve-2026-22871
    web:nvd.nist.gov

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

    2026-05-23 21:02 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 21:02 UTC
  • February 2026 Patch Tuesday: Microsoft Fixes 6 Active Zero-Days - WinBuzzer
    web:winbuzzer.com

    Microsoft has patched six exploited zero-days in February 2026 Patch Tuesday, addressing 58 vulnerabilities and triggering urgent enterprise remediation .

    2026-05-23 21:02 UTC
  • Microsoft February 2026 Patch Tuesday fixes 6 zero-days, 58 flaws
    web:www.bleepingcomputer.com

    Today is Microsoft's February 2026 Patch Tuesday with security updates for 58 flaws, including 6 actively exploited and three publicly disclosed zero-day vulnerabilities.

    2026-05-23 21:02 UTC
  • February's Patch Tuesday release fixes 59 flaws ... - Computerworld
    web:www.computerworld.com

    Each month, the team at Readiness analyzes the latest Patch Tuesday updates from Microsoft and provides detailed, actionable testing guidance. The company's Patch Tuesday release for February ...

    2026-05-23 21:02 UTC
  • February 2026 Patch Tuesday: Updates and Analysis | CrowdStrike
    web:www.crowdstrike.com

    Microsoft's February 2026 Patch Tuesday addresses 59 CVEs , featuring six exploited vulnerabilities, three of which were publicly known, and five Critical vulnerabilities.

    2026-05-23 21:02 UTC
  • Microsoft fixes six zero-days on February 2026 Patch Tuesday
    web:www.csoonline.com

    Microsoft highlighted six new and actively exploited vulnerabilities among the 60 fixes issued in today's February Patch Tuesday releases.

    2026-05-23 21:02 UTC
  • Windows 11 KB5077181, KB5075941 February 2026 Patch Tuesday ... - Neowin
    web:www.neowin.net

    Microsoft has released Patch Tuesday updates for Windows 11 KB5077181, KB5075941 for February 2026 . Here's what's included.

    2026-05-23 21:02 UTC
  • Windows 11 February 2026 Patch: KB5077181 and KB5075941 fix zero-days ...
    web:www.notebookcheck.net

    Microsoft's February 2026 Windows 11 updates (KB5077181 and KB5075941) add security patches, bug fixes, and new Secure Boot rollout signals ahead of certificate expirations starting in June 2026 .

    2026-05-23 21:02 UTC
  • CISA Warns of Exploited Microsoft Defender 0-Day Flaws
    web:cyberpress.org

    Mitigation Under Binding Operational Directive (BOD) 22-01, all federal civilian executive branch (FCEB) agencies are mandated to apply vendor-provided mitigations by June 3, 2026 , or discontinue use of the affected product if patches are unavailable. CISA's guidance explicitly extends to cloud-hosted environments leveraging Microsoft Defender.

    2026-05-26 02:47 UTC
  • Pennsylvania Access To Criminal History - Home
    web:epatch.pa.gov

    Why does PATCH exist? Its purpose is to better enable the public to obtain criminal history record checks. The repository was created and is maintained in accordance with Pennsylvania's Criminal History Information Act contained in Chapter 91 of Title 18, Crimes Code. This Act also directs the Pennsylvania State Police (PSP) to disseminate criminal history data to criminal justice agencies ...

    2026-05-26 02:47 UTC
  • Patch Tuesday, April 2026 Edition - Krebs on Security
    web:krebsonsecurity.com

    For a clickable, per- patch breakdown, check out the SANS Internet Storm Center Patch Tuesday roundup. Running into problems applying any of these updates?

    2026-05-26 02:47 UTC
  • patch.moe - Age Verification
    web:patch.moe

    Age Verification Are you 18 years or older? YES NO

    2026-05-26 02:47 UTC
  • Patch - patch
    web:patchnashville.com

    Patch was born out of a love of children's fashion and classic yet modern gifting. The goal was to create a timeless yet modern boutique with a playful touch featuring children's clothing, gifts, & accessories. My hope is that you always find what you came for and feel as inspired by our collections as we are.

    2026-05-26 02:47 UTC
  • Microsoft Patch Tuesday, April 2026 Security Update Review
    web:threatprotect.qualys.com

    Zero-day Vulnerabilities Patched in April Patch Tuesday Edition CVE - 2026 -33825: Microsoft Defender Elevation of Privilege Vulnerability Microsoft Defender is a comprehensive, AI-powered security suite that provides malware protection, phishing detection, and web protection for individuals and businesses.

    2026-05-26 02:47 UTC
  • Microsoft April 2026 Patch Tuesday fixes 167 flaws, 2 zero-days
    web:www.bleepingcomputer.com

    Today is Microsoft's April 2026 Patch Tuesday with security updates for 167 flaws, including 2 zero-day vulnerabilities.

    2026-05-26 02:47 UTC
  • CVE: Common Vulnerabilities and Exposures
    web:www.cve.org

    At cve .org, we provide the authoritative reference method for publicly known information-security vulnerabilities and exposures

    2026-05-26 02:47 UTC
  • Patch Notes - League of Legends
    web:www.leagueoflegends.com

    League of Legends Patch 26.5 Notes Welcome to the official patch of First Stand, the first major international tournament of the year!

    2026-05-26 02:47 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-8271.json.

{
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                  },
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                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-11T10:18:29.181643Z",
                "version": "2.0.3"
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