PT-2026-7359 · Github+1 · Github Copilot+1

Tarek Nakkouch · Published 2026-02-10 · Updated 2026-03-13 · CVE-2026-21257

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base vector

AV:N/AC:L/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions GitHub Copilot and Visual Studio (affected versions not specified)

Description The software contains a command injection issue due to improper neutralization of special elements used in commands. A successful exploit could allow an authorized attacker to elevate privileges over a network. The issue relates to a failure to sanitize data at the management level. Exploitation may allow a remote attacker to elevate their privileges.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

LPE

Command Injection

Weakness Enumeration

CWE-77

Related Identifiers

BDU:2026-01791

CVE-2026-21257

Affected Products

Github Copilot

Visual Studio

References · 5

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21257 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-21257 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-01791 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-21257 · Security Note
• https://t.me/msrcreports/3380 · Telegram Post