# DLA-4399-1: webkit2gtk security update

DLA-4399-1, released December 10, 2025, fixes 1 CVE in webkit2gtk (version 2.50.3-1~deb11u1). 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/dla-4399-1
- Platform: Linux
- Released: Dec 10, 2025
- Priority: High (Closes CVE-2025-13947, high severity)
- CVEs: 1, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://security-tracker.debian.org/tracker/CVE-2025-13947

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [webkit2gtk](https://patchblox.com/security/data/product/linux/webkit2gtk.md) | Debian 11.6 (bullseye) | 2.50.3-1~deb11u1 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2025-13947](https://patchblox.com/security/data/cve/CVE-2025-13947.md) | High | webkit2gtk3: WebKitGTK is the port of the portable web rendering engine WebKit to the GTK platform.  Security Fix(es):  * webkit:... | 8.8 | 0.0036 |  |

---

Data as of 2026-11-07T06:34:28Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo