# CVE-2024-34459

## Summary

- **CVE ID:** CVE-2024-34459
- **Severity:** HIGH
- **CVSS Score:** 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)
- **CWE:** N/A
- **Published:** May 13, 2024
- **Last Modified:** Sep 14, 2026

## Description

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.

## Affected Products

- n/a — n/a (n/a)

## References

- [CNA](https://gitlab.gnome.org/GNOME/libxml2/-/issues/720)
- [CNA](https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.12.7)
- [CNA](https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.11.8)
- [CNA](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/INKSSLW5VMZIXHRPZBAW4TJUX5SQKARG/)
- [CNA](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VRDJCNQP32LV56KESUQ5SNZKAJWSZZRI/)
- [CNA](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5HVUXKYTBWT3G5DEEQX62STJQBY367NL/)
- [CVE](https://lists.debian.org/debian-lts-announce/2025/07/msg00014.html)
- [CVE](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5HVUXKYTBWT3G5DEEQX62STJQBY367NL/)
- [CVE](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/INKSSLW5VMZIXHRPZBAW4TJUX5SQKARG/)
- [CVE](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VRDJCNQP32LV56KESUQ5SNZKAJWSZZRI/)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 2.30%
- **EPSS Percentile:** 82.5

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-18._