# DSA-5497-2: libwebp security update

DSA-5497-2, released September 13, 2023, fixes 1 CVE in libwebp (version 0.6.1-2.1+deb11u2). One of them is being exploited (CVE-2023-4863); 1 on CISA KEV. Patch Radar priority: Patch now. The product is no longer supported.

- Web page: https://patchblox.com/security/fix/linux/dsa-5497-2
- Platform: Linux
- Released: Sep 13, 2023
- Priority: Patch now (Closes CVE-2023-4863, exploited (CISA KEV))
- CVEs: 1, exploited: 1, on CISA KEV: 1
- Vendor advisory: https://security-tracker.debian.org/tracker/CVE-2023-4863

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [libwebp](https://patchblox.com/security/data/product/linux/libwebp.md) | Debian 11.6 (bullseye) | 0.6.1-2.1+deb11u2 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2023-4863](https://patchblox.com/security/data/cve/CVE-2023-4863.md) | Patch now | Chromium: CVE-2023-4863 Heap buffer overflow in WebP | 9.6 | 0.9998 | CISA KEV, Disclosed |

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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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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