CVE-2025-34458
wb2osz/direwolf <= 1.8.1 Reachable Assertion DoS
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-617 |
| Vendor | wb2osz |
| Product | dire wolf |
| Published | Dec 22, 2025 |
| Last Updated | Mar 23, 2026 |
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Affected Versions
wb2osz / Dire Wolf
0 ≤ 1.8.1
References
github.com: https://github.com/marlinkcyber/advisories/blob/main/advisories/MCSAID-2025-010-direwolf-stack-buffer-overflow-kiss-frame.md github.com: https://github.com/wb2osz/direwolf/issues/618 github.com: https://github.com/wb2osz/direwolf/commit/3658a87 vulncheck.com: https://www.vulncheck.com/advisories/wb2osz-direwolf-reachable-assertion-dos
Credits
Vlatko Kosturjak with Marlink Cyber