# ALSA-2025:20956: Security update for 3 packages

ALSA-2025:20956, released November 11, 2025, fixes 2 CVEs across 3 products. None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/alsa-2025-20956
- Platform: Linux
- Released: Nov 11, 2025
- Priority: High (Closes CVE-2025-9900, high severity)
- CVEs: 2, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://osv.dev/vulnerability/ALSA-2025:20956

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [libtiff](https://patchblox.com/security/data/product/linux/libtiff.md) | almalinux 9 | 4.4.0-15.el9_7.2 |
| [libtiff-devel](https://patchblox.com/security/data/product/linux/libtiff-devel.md) | almalinux 9 | 4.4.0-15.el9_7.2 |
| [libtiff-tools](https://patchblox.com/security/data/product/linux/libtiff-tools.md) | almalinux 9 | 4.4.0-15.el9_7.2 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2025-9900](https://patchblox.com/security/data/cve/CVE-2025-9900.md) | High | Libtiff: libtiff write-what-where | 8.8 | 0.0101 |  |
| [CVE-2025-8176](https://patchblox.com/security/data/cve/CVE-2025-8176.md) | High | LibTIFF tiffmedian.c get_histogram use after free | 8.8 | 0.0029 |  |

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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo