Vulnerability details
CVE-2026-58599
Microsoft HEVC Video ExtensionsMicrosoft HEVC Video Extensions for Licensed ApplicationsMicrosoft HEVC Video Extensions from Device Manufacturer
HEVC Video Extensions Remote Code Execution Vulnerability
CVSS 3.1
7.8High
Official description
Heap-based buffer overflow in Microsoft Windows Codecs Library allows an unauthorized attacker to execute code locally.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.8High | 3.1 | CVEProject cvelistV5 (CNA) (microsoft) | 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 |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Microsoft | HEVC Video Extensions | 1.0.0 ≤ v < 2.4.87.0 | CVEProject cvelistV5 (CNA) |
| Microsoft | HEVC Video Extensions for Licensed Applications | 2.0.0.0 ≤ v < 2.4.85.0 | CVEProject cvelistV5 (CNA) |
| Microsoft | HEVC Video Extensions from Device Manufacturer | 2.0.0.0 ≤ v < 2.4.86.0 | CVEProject cvelistV5 (CNA) |
References and advisories
1- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58599 vendor-advisorypatch
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Details
- Published
- 2026-09-08
- Last updated
- 2026-10-31
- State
- Published
- Assigner (CNA)
- microsoft
Exploit prediction (EPSS)
0.46%
Probability of exploitation in 30 days
40.6%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-122Heap-based Buffer Overflow