# CVE-2026-95393: wireshark: CSN.1 protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service

CVE-2026-95393 is fixed in 5 products on 1 platform, first by DEBIAN-CVE-2026-95393, released October 4, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-95393
- Priority: Routine
- CVSS: 4.7 (medium)
- EPSS: 0.0013
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 29, 2026

## Description

CSN.1 protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | wireshark Debian 13.5 (trixie) | 4.4.19-0+deb13u1 | [DEBIAN-CVE-2026-95393](https://patchblox.com/security/data/fix/linux/debian-cve-2026-95393.md) | Oct 4, 2026 |
| Linux | wireshark Debian 14 | 4.6.9-1 | [DEBIAN-CVE-2026-95393](https://patchblox.com/security/data/fix/linux/debian-cve-2026-95393.md) | Oct 4, 2026 |
| Linux | wireshark-cli amzn 2023 | 1:4.6.9-1.amzn2023.0.2 | [ALAS2023-2026-3252](https://patchblox.com/security/data/fix/linux/alas2023-2026-3252.md) | Nov 7, 2026 |
| Linux | wireshark-cli-debuginfo amzn 2023 | 1:4.6.9-1.amzn2023.0.2 | [ALAS2023-2026-3252](https://patchblox.com/security/data/fix/linux/alas2023-2026-3252.md) | Nov 7, 2026 |
| Linux | wireshark-debugsource amzn 2023 | 1:4.6.9-1.amzn2023.0.2 | [ALAS2023-2026-3252](https://patchblox.com/security/data/fix/linux/alas2023-2026-3252.md) | Nov 7, 2026 |
| Linux | wireshark-devel amzn 2023 | 1:4.6.9-1.amzn2023.0.2 | [ALAS2023-2026-3252](https://patchblox.com/security/data/fix/linux/alas2023-2026-3252.md) | Nov 7, 2026 |

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Data as of 2026-11-08T19:12:23Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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