Public proof of conceptFix available

CVE-2022-33065

A public proof of concept exists; no exploitation attested.

Published2023-07-18
WeaknessCWE-190

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Multiple signed integers overflow in function au_read_header in src/au.c and in functions mat4_open and mat4_read_header in src/mat4.c in Libsndfile, allows an attacker to cause Denial of Service or other unspecified impacts.

Timeline

dates in UTC

2023-07-1814:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2022-33065?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2022-33065?format=csv
TAXII collection of exploited CVEs
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Versions per branch

NVD

Libsndfile project libsndfile

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

libsndfileAlmaLinux:9all versions · fixed in 1.0.31-8.el9and 2 other packages
libsndfileAlmaLinux:8all versions · fixed in 1.0.28-14.el8and 2 other packages

Vendor advisories

CVE-2022-33065 Red Hat Product Security120 products fixed
libsndfile: integer overflow in src/mat4.c and src/au.c leads to DoS
RHSA-2024:3030 Red Hat Product Security45 products fixed
Red Hat Security Advisory: libsndfile security update
RHSA-2024:2184 Red Hat Product Security45 products fixed
Red Hat Security Advisory: libsndfile security update

Full record on NVD

Fix

Vendor fix Red Hat Product Security RHSA-2024:3030 · 45 productsFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionpoc2024-10-28
OpenCVESSVC decisionpoc—
NVDCVSS 3.17.8read 2026-10-23
NVDweakness (CWE)CWE-190read 2026-10-23
FIRST EPSSEPSS score0.4 %2026-10-23
OSVaffected packages—

Technical details

CVSS v3 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published: 2023-07-18
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2022-33065?

Is CVE-2022-33065 actively exploited?

A proof-of-concept exploit exists for CVE-2022-33065, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2022-33065?

CVE-2022-33065 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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