CVE-2026-58699 Vp9DecEndOfStream - Out of Bounds Read

Vp9DecEndOfStream in vp9hwd_output.cc contains an out-of-bounds read caused by incorrect bounds check, letting local attackers escalate privileges without additional execution rights, exploit requires no user interaction.

CVSS base score 8.4 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.10% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Out of Bounds Read
Impact
Privilege Escalation
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
15 September 2026
Updated
15 October 2026
Weakness
CWE-125

Vendor fix

Update to the latest version containing the 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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