CVE-2026-56942 vp9hwd_headers.cc - Out of Bounds Write

vp9hwd_headers.cc contains an out-of-bounds write caused by a missing bounds check in ReadTileInfo, letting remote attackers escalate privileges without additional execution rights, exploit requires no user interaction.

CVSS base score 8.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.37% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Out of Bounds Write
Impact
Privilege Escalation
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
15 September 2026
Updated
15 October 2026
Weakness
CWE-787

Vendor fix

Update to the latest version containing the bounds check fix.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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