CVE-2022-29824

Exp

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.

Published: 2022-05-02 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2022-29824 is rated High Exploit Risk (74.9/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 3.40%). 2 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +3.33% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2022-29824

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2022-29824

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.07% 3.40% +3.33%
2 2025-11-21 0.92% 0.07% -0.85%
3 2025-11-18 — 0.92% —

Full EPSS history (19 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-29824

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.5 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 3.6 [email protected]
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2022-29824

OS Trackers for CVE-2022-29824

vendor priority summary link
alpine medium CVE-2022-29824: 3 source package rows (libxml2, libxml2.13, libxslt); 82 state rows across 8 repos (3.12-main, 3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 80, open 2. https://security.alpinelinux.org/vuln/CVE-2022-29824
debian not yet assigned CVE-2022-29824 not yet assigned priority: Debian including 1 source packages (libxml2), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2022-29824
gentoo high CVE-2022-29824: 1 GLSA(s) (202210-03), 1 atom(s) (dev-libs/libxml2); latest impact high. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2022-29824
redhat medium — https://access.redhat.com/security/cve/CVE-2022-29824
suse high CVE-2022-29824 severity important: SUSE including 400 source package names (0.23.0.3.2.423:libxml2-2-2.9.7-150000.3.57.1, 1.0.1-build4.16.1:libxml2-2-2.9.7-150000.3.46.1, …), 942 product×package rows across 280 product lines (Container bci/bci-init, Container bci/dotnet-aspnet, … (280 product lines)): Fixed 843, Known Affected 73, Known Not Affected 26. https://www.suse.com/security/cve/CVE-2022-29824/
ubuntu medium CVE-2022-29824 medium priority: Ubuntu including 1 source packages (libxml2), 7 status rows across 7 suites (bionic, focal, impish, jammy, trusty, upstream, xenial): released 7. https://ubuntu.com/security/CVE-2022-29824

Affected software / configurations for CVE-2022-29824

Vendor Product Version Raw CPE
xmlsoft libxml2 < 2.9.14 cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:*
xmlsoft libxslt <= 1.1.35 cpe:2.3:a:xmlsoft:libxslt:*:*:*:*:*:*:*:*
fedoraproject fedora 34 cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
fedoraproject fedora 35 cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
fedoraproject fedora 36 cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*
debian debian_linux 9.0 cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
debian debian_linux 10.0 cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
debian debian_linux 11.0 cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
netapp active_iq_unified_manager — cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vsphere:*:*
netapp clustered_data_ontap — cpe:2.3:a:netapp:clustered_data_ontap:-:*:*:*:*:*:*:*
netapp clustered_data_ontap_antivirus_connector — cpe:2.3:a:netapp:clustered_data_ontap_antivirus_connector:-:*:*:*:*:*:*:*
netapp manageability_software_development_kit — cpe:2.3:a:netapp:manageability_software_development_kit:-:*:*:*:*:*:*:*
netapp ontap_select_deploy_administration_utility — cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:*
netapp smi-s_provider — cpe:2.3:a:netapp:smi-s_provider:-:*:*:*:*:*:*:*
netapp snapdrive — cpe:2.3:a:netapp:snapdrive:-:*:*:*:*:unix:*:*
netapp snapmanager — cpe:2.3:a:netapp:snapmanager:-:*:*:*:*:hyper-v:*:*
netapp solidfire_\&_hci_management_node — cpe:2.3:a:netapp:solidfire_\&_hci_management_node:-:*:*:*:*:*:*:*
oracle zfs_storage_appliance_kit 8.8 cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:*
netapp h300s_firmware — cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:*
netapp h500s_firmware — cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:*
netapp h700s_firmware — cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:*
netapp h410s_firmware — cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:*
netapp h410c_firmware — cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:*

References for CVE-2022-29824

URL Tags
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://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
cvelogic Threat Intelligence