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High 7.8Published Sep 8, 2026
CVE-2026-58600HEVC Video Extensions Elevation of Privilege Vulnerability
Updated under an hour ago ()
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It affects Microsoft HEVC Video Extensions and 2 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Heap-based buffer overflow in Microsoft Windows Codecs Library allows an unauthorized attacker to elevate privileges locally.
- CVSS
- 7.8 HIGH (v3.1, CNA)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
- Weakness (CWE)
- CWE-122
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- microsoft
- NVD analysis
- Analyzed
- Record last updated
- Oct 14, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Microsoft HEVC Video Extensions microsoft:hevc_video_extensions (from the name) | from 1.0.0 before 2.4.87.0 | CNA record |
Microsoft HEVC Video Extensions for Licensed Applications microsoft:hevc_video_extensions_for_licensed_applications (from the name) | from 2.0.0.0 before 2.4.85.0 | CNA record |
Microsoft HEVC Video Extensions from Device Manufacturer microsoft:hevc_video_extensions_from_device_manufacturer (from the name) | from 2.0.0.0 before 2.4.86.0 | CNA record |
microsoft hevc_video_extensions microsoft:hevc_video_extensions | before 2.4.87.0 | NVD |
microsoft hevc_video_extensions_for_licensed_applications microsoft:hevc_video_extensions_for_licensed_applications | before 2.4.85.0 | NVD |
microsoft hevc_video_extensions_from_device_manufacturer microsoft:hevc_video_extensions_from_device_manufacturer | before 2.4.86.0; before 2.5.25.0 | NVD |
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58600vendor-advisory, patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.