Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2022-29824

CVE-2022-29824MEDIUM

n/a n/a — In libxml2 before 2.9.14, several buffer handling functions in buf.c (xmlBuf*) and tree.c (xmlBuffer*) don't check for integer overflows.

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   N   R  U  N  N  H    6.5   .0375   89.7     —

AFFECTED
  Product  Versions  Fixed
  n/a      n/a –     —

TIMELINE
  Apr 27  Reserved by mitre
  May 3   Published (CNA: mitre)
  Oct 14  ENRICHED — CVE-2022-29824. Received CVSS 6.5 and CPE data from NVD.
  Oct 14  EXPLOIT PUBLISHED — CVE-2022-29824. Public exploit reference added.

CWE-190 · CNA: mitre · CVSS v3.1 · 15 references · NVD status: Modified

Description

In libxml2 before 2.9.14, several buffer handling functions in buf.c (xmlBuf*) and tree.c (xmlBuffer*) don't check for integer overflows. This can result in out-of-bounds memory writes. Exploitation requires a victim to open a crafted, multi-gigabyte XML file. Other software using libxml2's buffer functions, for example libxslt through 1.1.35, is affected as well.

Lifecycle

Complete event history — 4 events, chronological
Date	Event	Detail
April 27, 2022	Reserved	Reserved by mitre
May 3, 2022	Published	Published (CNA: mitre)
October 14, 2026	ENRICHED	ENRICHED — CVE-2022-29824. Received CVSS 6.5 and CPE data from NVD.
October 14, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2022-29824. Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
n/a	n/a	—	n/a	—

Weaknesses

CWE-190

References (15)

http://packetstormsecurity.com/files/167345/libxml2-xmlBufAdd-Heap-Buffer-Overflow.html [Exploit, Third Party Advisory, VDB Entry]
http://packetstormsecurity.com/files/169825/libxml2-xmlParseNameComplex-Integer-Overflow.html [Exploit, Third Party Advisory, VDB Entry]
https://cert-portal.siemens.com/productcert/html/ssa-398330.html
https://gitlab.gnome.org/GNOME/libxml2/-/commit/2554a2408e09f13652049e5ffb0d26196b02ebab [Patch, Third Party Advisory]
https://gitlab.gnome.org/GNOME/libxml2/-/commit/6c283d83eccd940bcde15634ac8c7f100e3caefd [Patch, Third Party Advisory]
https://gitlab.gnome.org/GNOME/libxml2/-/tags/v2.9.14 [Release Notes, Third Party Advisory]
https://gitlab.gnome.org/GNOME/libxslt/-/tags [Product, Third Party Advisory]
https://lists.debian.org/debian-lts-announce/2022/05/msg00023.html [Mailing List, Third Party Advisory]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FZOBT5Y6Y2QLDDX2HZGMV7MJMWGXORKK/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/P3NVZVWFRBXBI3AKZZWUWY6INQQPQVSF/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/P5363EDV5VHZ5C77ODA43RYDCPMA7ARM/
https://security.gentoo.org/glsa/202210-03 [Third Party Advisory]
https://security.netapp.com/advisory/ntap-20220715-0006/ [Third Party Advisory]
https://www.debian.org/security/2022/dsa-5142 [Third Party Advisory]
https://www.oracle.com/security-alerts/cpujul2022.html [Patch, Third Party Advisory]

Authoritative record: CVE-2022-29824 at cve.org

Weaknesses: CWE-190

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2022-29824 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.