stb_vorbis through 1.22 contains a heap buffer overflow in start_decoder() where the codebook multiplicands allocation size is truncated from size_t to int. Attackers can craft a malicious Ogg Vorbis file with large entries and dimensions values to trigger out-of-bounds writes, causing process crashes or heap corruption.
History

Sun, 20 Sep 2026 01:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 11 Sep 2026 23:45:00 +0000

Type Values Removed Values Added
Description stb_vorbis through 1.22 contains a heap buffer overflow in start_decoder() where the codebook multiplicands allocation size is truncated from size_t to int. Attackers can craft a malicious Ogg Vorbis file with large entries and dimensions values to trigger out-of-bounds writes, causing process crashes or heap corruption.
Title stb_vorbis through 1.22 heap buffer overflow via codebook multiplicands
First Time appeared Stb Vorbis Project
Stb Vorbis Project stb Vorbis
Weaknesses CWE-787
CPEs cpe:2.3:a:stb_vorbis_project:stb_vorbis:*:*:*:*:*:*:*:*
Vendors & Products Stb Vorbis Project
Stb Vorbis Project stb Vorbis
References
Metrics cvssV3_1

{'score': 8.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H'}

cvssV4_0

{'score': 8.8, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2026-09-11T23:23:26.509Z

Updated: 2026-09-24T14:21:42.371Z

Reserved: 2026-09-11T10:52:56.669Z

Link: CVE-2026-89266

cve-icon Vulnrichment

Updated: 2026-09-20T00:31:00.808Z

cve-icon NVD

Status : Deferred

Published: 2026-09-12T00:17:06.440

Modified: 2026-09-24T21:08:55.030

Link: CVE-2026-89266

cve-icon Redhat

No data.