# DSA-5271-1: libxml2 security update

DSA-5271-1, released November 5, 2022, fixes 1 CVE in libxml2 (version 2.9.10+dfsg-6.7+deb11u3). None of them is reported as exploited. Patch Radar priority: High. The product is no longer supported.

- Web page: https://patchblox.com/security/fix/linux/dsa-5271-1
- Platform: Linux
- Released: Nov 5, 2022
- Priority: High (Closes CVE-2022-40303, high severity)
- CVEs: 1, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://security-tracker.debian.org/tracker/CVE-2022-40303

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [libxml2](https://patchblox.com/security/data/product/linux/libxml2.md) | Debian 11.6 (bullseye) | 2.9.10+dfsg-6.7+deb11u3 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2022-40303](https://patchblox.com/security/data/cve/CVE-2022-40303.md) | High | libxml2-utils: An issue was discovered in libxml2 before 2.10.3 | 8.2 | 0.4137 |  |

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Data as of 2026-11-07T18:46:35Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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