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CVE-2026-26164

7.5 HIGH

Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an unauthorized attacker to di...

Published: 2026-05-07 · Last updated: 2026-06-01

Severity and scoring

CVSS
7.5 HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE
CWE-74

Affected products

VendorProduct
microsoft365_copilot_chat

Description

Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an unauthorized attacker to disclose information over a network.

Source: NVD

References

Related CVEs

Same vendor

  • CVE-2026-50512 — Improper link resolution before file access ('link following') in Microsoft PC Manager allows an authorized attacker to elevate privilege... (7.8 HIGH)
  • CVE-2026-50511 — Improper link resolution before file access ('link following') in Microsoft PC Manager allows an authorized attacker to elevate privilege... (7.8 HIGH)
  • CVE-2026-50507 — Protection mechanism failure in Windows BitLocker allows an unauthorized attacker to bypass a security feature with a physical attack (6.8 MEDIUM)
  • CVE-2026-49161 — Improper access control in Microsoft PC Manager allows an authorized attacker to bypass a security feature locally (7.8 HIGH)
  • CVE-2026-49160 — Uncontrolled resource consumption in HTTP/2 allows an unauthorized attacker to deny service over a network (7.5 HIGH)

Same CWE

  • CVE-2026-12223 — A vulnerability was identified in Yealink SIP-T46U 108.86.0.118 (5.5 MEDIUM)
  • CVE-2026-12219 — A flaw has been found in Yealink SIP-T46U 108.86.0.118 (6.3 MEDIUM)
  • CVE-2026-12206 — A vulnerability was identified in Grit42 Grit up to 0.11.0 (6.3 MEDIUM)
  • CVE-2026-12197 — A security flaw has been discovered in Ruijie EG105G-P 2.340 (7.2 HIGH)
  • CVE-2026-12188 — A vulnerability was detected in Grit42 Grit up to 0.11.0 (6.3 MEDIUM)