CVE-2024-34459

Exp

An issue was discovered in xmllint (from libxml2) before 2.11.8 and 2.12.x before 2.12.7. Formatting error messages with xmllint --htmlout can result in a buffer over-read in xmlHTMLPrintFileContext in xmllint.c.

Published: 2024-05-14 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-34459 is rated High Exploit Risk (71.4/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.30%). 1 public exploit reference(s) are indexed (Exploit-DB). 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-2024-34459

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

Exploit prediction scoring system (EPSS) score for CVE-2024-34459

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 4.20% 2.30% -1.90%
2 2026-06-01 3.14% 4.20% +1.06%
3 2026-04-17 — 3.14% —

Full EPSS history (21 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-34459

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N 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:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 3.6 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2024-34459

OS Trackers for CVE-2024-34459

vendor priority summary link
alpine — CVE-2024-34459: 2 source package rows (libxml2, libxml2.13); 7 state rows across 6 repos (3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 7, open 0. https://security.alpinelinux.org/vuln/CVE-2024-34459
debian unimportant CVE-2024-34459 unimportant 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-2024-34459
redhat low — https://access.redhat.com/security/cve/CVE-2024-34459
suse low CVE-2024-34459 severity low: SUSE including 344 source package names (0.23:libxml2-2-2.10.3-150500.5.17.1, 0.3.2-1.2:libxml2-2-2.10.3-150500.5.17.1, …), 835 product×package rows across 327 product lines (Container bci/bci-sle15-kernel-module-devel, Container bci/kiwi, … (327 product lines)): Fixed 589, Known Affected 205, Known Not Affected 41. https://www.suse.com/security/cve/CVE-2024-34459/
ubuntu low CVE-2024-34459 low priority: Ubuntu including 1 source packages (libxml2), 9 status rows across 9 suites (bionic, focal, jammy, mantic, noble, oracular, trusty, upstream, xenial): released 6, ignored 1, needs-triage 1, not-affected 1. https://ubuntu.com/security/CVE-2024-34459

Affected software / configurations for CVE-2024-34459

Vendor Product Version Raw CPE
xmlsoft libxml2 < 2.11.8 cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:*
xmlsoft libxml2 >= 2.12.0, < 2.12.7 cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:*

References for CVE-2024-34459

URL Tags
https://gitlab.gnome.org/GNOME/libxml2/-/issues/720 Exploit Issue Tracking
https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.11.8 Release Notes
https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.12.7 Release Notes
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5HVUXKYTBWT3G5DEEQX62STJQBY367NL/ Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/INKSSLW5VMZIXHRPZBAW4TJUX5SQKARG/ Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VRDJCNQP32LV56KESUQ5SNZKAJWSZZRI/ Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2025/07/msg00014.html
https://lists.fedoraproject.org/archives/list/[email protected]/message/5HVUXKYTBWT3G5DEEQX62STJQBY367NL/
https://lists.fedoraproject.org/archives/list/[email protected]/message/INKSSLW5VMZIXHRPZBAW4TJUX5SQKARG/
https://lists.fedoraproject.org/archives/list/[email protected]/message/VRDJCNQP32LV56KESUQ5SNZKAJWSZZRI/
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