# CVE-2025-34458

## Summary

- **CVE ID:** CVE-2025-34458
- **Severity:** HIGH
- **CVSS Score:** 8.7 (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N)
- **CWE:** CWE-617
- **Published:** Dec 22, 2025
- **Last Modified:** Mar 23, 2026

## Description

wb2osz/direwolf (Dire Wolf) versions up to and including 1.8, 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.

## Affected Products

- wb2osz — Dire Wolf (0)
- wb2osz — Dire Wolf (commit 3658a87)
- wb2osz — Dire Wolf (3658a878920803bbb69a4567579dcc4d6cb80a92)

## References

- [CNA](https://github.com/marlinkcyber/advisories/blob/main/advisories/MCSAID-2025-010-direwolf-stack-buffer-overflow-kiss-frame.md)
- [CNA](https://github.com/wb2osz/direwolf/issues/618)
- [CNA](https://github.com/wb2osz/direwolf/commit/3658a87)
- [CNA](https://www.vulncheck.com/advisories/wb2osz-direwolf-reachable-assertion-dos)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.45%
- **EPSS Percentile:** 37.9

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._