# CVE-2025-34458: direwolf: wb2osz/direwolf (Dire Wolf) versions up to and including 1.8.1, prior to commit 3658a87, contain a reachable assertio...

CVE-2025-34458 is fixed in 4 products on 1 platform, first by DEBIAN-CVE-2025-34458, released December 22, 2025. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2025-34458
- Priority: Routine
- CVSS: n/a
- EPSS: 0.0046
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Dec 22, 2025

## Description

wb2osz/direwolf (Dire Wolf) versions up to and including 1.8.1, prior to commit 3658a87, contain a reachable assertion vulnerability in the APRS MIC-E decoder function aprs_mic_e() located in src/decode_aprs.c. When processing a specially crafted AX.25 frame containing a MIC-E message with an empty or truncated comment field, the application triggers an unhandled assertion checking for a non-empty comment. This assertion failure causes immediate process termination, allowing a remote, unauthenticated attacker to cause a denial of service by sending malformed APRS traffic.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | direwolf Debian 14 | 1.8.1+dfsg-2 | [DEBIAN-CVE-2025-34458](https://patchblox.com/security/data/fix/linux/debian-cve-2025-34458.md) | Dec 22, 2025 |
| Linux | direwolf Fedora 43 | 1.8.1-1.fc43 | [FEDORA-2025-793E1E1341](https://patchblox.com/security/data/fix/linux/fedora-2025-793e1e1341.md) | Dec 24, 2025 |
| Linux | direwolf-debuginfo Fedora 43 | 1.8.1-1.fc43 | [FEDORA-2025-793E1E1341](https://patchblox.com/security/data/fix/linux/fedora-2025-793e1e1341.md) | Dec 24, 2025 |
| Linux | direwolf-debugsource Fedora 43 | 1.8.1-1.fc43 | [FEDORA-2025-793E1E1341](https://patchblox.com/security/data/fix/linux/fedora-2025-793e1e1341.md) | Dec 24, 2025 |
| Linux | direwolf-doc Fedora 43 | 1.8.1-1.fc43 | [FEDORA-2025-793E1E1341](https://patchblox.com/security/data/fix/linux/fedora-2025-793e1e1341.md) | Dec 24, 2025 |

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Data as of 2026-11-08T06:59:42Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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