# DLA-4489-1: libvpx security update

DLA-4489-1, released February 22, 2026, fixes 1 CVE in libvpx (version 1.9.0-1+deb11u5). 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-4489-1
- Platform: Linux
- Released: Feb 22, 2026
- Priority: High (Closes CVE-2026-2447, high severity)
- CVEs: 1, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://security-tracker.debian.org/tracker/CVE-2026-2447

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [libvpx](https://patchblox.com/security/data/product/linux/libvpx.md) | Debian 11.6 (bullseye) | 1.9.0-1+deb11u5 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-2447](https://patchblox.com/security/data/cve/CVE-2026-2447.md) | High | Heap buffer overflow in libvpx | 8.8 | 0.0070 |  |

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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo