Vulnerability · Published Sep 8, 2026 · Assigned by microsoft
CVE-2026-81353HEIF Image Extensions Remote Code Execution Vulnerability
High 7.8
In plain English
A high-severity heap buffer overflow in HEIF Image Extension from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 41% of all known vulnerabilities).
Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.5%top 59.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Heap-based buffer overflow in Microsoft Windows Codecs Library allows an unauthorized attacker to execute code locally.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | HEIF Image Extension | 1.0.0.0 – before 1.2.48.0 |
Weakness: CWE-122 · Vector: 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
References
- HEIF Image Extensions Remote Code Execution Vulnerability vendor-advisory, patch