---
id: CVE-2025-34458
title: >-
  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
summary: >-
  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 …
severity: none
cwe:
  - CWE-617
published: '2025-12-22'
updated: '2026-09-28'
sourceUpdated: '2026-09-28T10:10:00.473'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-34458'
references:
  - url: >-
      https://github.com/marlinkcyber/advisories/blob/main/advisories/MCSAID-2025-010-direwolf-stack-buffer-overflow-kiss-frame.md
    label: disclosure@vulncheck.com
  - url: 'https://github.com/wb2osz/direwolf/commit/3658a87'
    label: disclosure@vulncheck.com
  - url: 'https://github.com/wb2osz/direwolf/issues/618'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/wb2osz-direwolf-reachable-assertion-dos
    label: disclosure@vulncheck.com
tags:
  - nvd
epss: 0.00461
epssPercentile: 0.37445
ingestedAt: '2026-09-28T11:08:06.666Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.