CVE-2026-5317

Nothings stb stb_vorbis.c start_decoder out-of-bounds write

HIGH
8.8
CVSS Score
Published: April 2, 2026 at 12:45 AM UTC
Updated: October 26, 2026 at 10:10 PM UTC
2 products affected across 1 vendorStb Vorbis.cStb

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Severity
HIGH8.8
Exploit prediction
EPSS 0.4%
SSVC
PoC

Description

A security flaw has been discovered in Nothings stb up to 1.22. This affects the function start_decoder of the file stb_vorbis.c. The manipulation results in out-of-bounds write. The attack may be performed from remote. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (4)

VDB EntryTechnical DescriptionThird Party Advisory
Source: cverecord
https://vuldb.com/vuln/354649
SignaturePermissions RequiredVDB Entry
Source: cverecord
https://vuldb.com/vuln/354649/cti
Third Party AdvisoryVDB Entry
Source: cverecord
https://vuldb.com/submit/780561
ExploitThird Party Advisory
Source: cverecord
https://gist.github.com/d0razi/2ff8a0e812f74dd6fe7f2843931bb90c

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-787CWE-119

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