Riskcovery

CVE-2026-55012

Microsoft Defender Remote Code Execution Vulnerability

State
Published
Severity
7.8 High
Published
Jul 14, 2026
Updated
Nov 1, 2026
Reserved
Jun 16, 2026

Read the record on cve.org

Description

Integer overflow or wraparound in Microsoft Defender allows an unauthorized attacker to execute code locally.

Scores

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

Weaknesses

  • CWE-190 Integer Overflow or Wraparound
  • CWE-122 Heap-based Buffer Overflow

Affected Products

ProductVersions
Microsoft Malware Protection EngineMicrosoft
  • 1.1.0.0 to before 1.1.26060.3008Affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.