CVE-2026-54981 | BDVDB-2026-357501 Detail

MicrosoftPython extension for Visual Studio Code

Description#

Inclusion of functionality from untrusted control sphere in Visual Studio Code - Python extension allows an unauthorized attacker to bypass a security feature locally.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: local.

Weaknesses#

CWE-829 Inclusion of Functionality from Untrusted Control Sphere
CWE-693 Protection Mechanism Failure

References#

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54981

Exploit#

No public exploit known

History#

Version 12026-08-11Record published in the CVE List.
Version 22026-11-10Most recent update recorded in the CVE List.

Published

Published: 2026-08-11
Last modified: 2026-11-10

Vendor information

Vendor: Microsoft
Product: Python extension for Visual Studio Code

All Microsoft vulnerabilities

Score

7.8 High

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 40.7.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Not classified

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
>= 2020 and < 2026.3.1
Fixed
2026.3.1

Scoring System

CVSS v4.0

Not available

CVSS v3.1

7.8 High

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Metric breakdown
Attack Vector	Local
Attack Complexity	Low
Privileges Required	None
User Interaction	Required
Scope	Unchanged
Confidentiality	High
Integrity	High
Availability	High

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).