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PatchSiren cyber security CVE debrief

CVE-2026-78461 Microsoft CVE debrief

Microsoft Visual Studio Code vulnerability allows unauthorized attackers to bypass security features over a network via path traversal, potentially impacting defenders who need to assess exposure and prioritize patching to prevent security feature bypass. This vulnerability requires defenders to verify exposure of Visual Studio Code installations, prioritize patching to prevent security feature bypass, and assess network security configurations to prevent unauthorized access. The vulnerability has a CVSS score of 7.4 and a HIGH severity rating.

Vendor
Microsoft
Product
Visual Studio Code
CVSS
HIGH 7.4
CISA KEV
Not listed in stored evidence
Original CVE published
2026-09-08
Original CVE updated
2026-10-14
Advisory published
2026-09-08
Advisory updated
2026-10-14

Who should care

Defenders of Visual Studio Code installations should assess exposure and prioritize patching to prevent security feature bypass. This includes verifying exposure of Visual Studio Code installations, prioritizing patching to version 1.136.2 or later, and assessing network security configurations to prevent unauthorized access. Defenders should also review compensating controls for exposed systems while remediation is

Why it matters

CVE-2026-78461 allows unauthorized attackers to bypass security features in Visual Studio Code via path traversal, requiring defenders to assess exposure and prioritize patching.

  • Verify exposure of Visual Studio Code installations
  • Prioritize patching to prevent security feature bypass
  • Assess network security configurations to prevent unauthorized access

Technical summary

CVE-2026-78461 is a path traversal vulnerability in Microsoft Visual Studio Code that allows unauthorized attackers to bypass security features over a network, potentially impacting defenders who need to assess exposure and prioritize patching. The vulnerability has a CVSS score of 7.4 and a HIGH severity rating, requiring defenders to verify exposure of Visual Studio Code installations and prioritize patching to prevent security feature bypass.

Defensive priority

Assess exposure, prioritize patching

Recommended defensive actions

  • Assess exposure of Visual Studio Code installations to CVE-2026-78461
  • Prioritize patching to version 1.136.2 or later
  • Verify network security configurations to prevent unauthorized access

Evidence notes

Official CVE Program and NVD records detail path traversal vulnerability in Visual Studio Code, with a CVSS score of 7.4 and HIGH severity. The CVE record was published on 2026-09-08T18:20:44.550Z and has not been modified since then. Defenders should verify exposure of Visual Studio Code installations and prioritize patching to version 1.136.2 or later. The vulnerability allows unauthorized attackers to bypass security features over a network via path traversal.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-78461 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-78461

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-78461 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-78461

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.