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CVE-2025-34458

28
FAUCET Score

CVE-2025-34458 is a denial-of-service vulnerability affecting wb2osz/direwolf (Dire Wolf) versions up to and including 1.8. A remote, unauthenticated attacker can trigger an assertion failure in the APRS MIC-E decoder by sending a specially crafted AX.25 frame with an empty or truncated comment field, causing immediate process termination. This vulnerability has a high CVSS score of 8.7, indicating a severe impact on availability with low attack complexity and no user interaction required. There is currently no evidence of active exploitation, nor are there public exploit tools or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
Wb2oszDire Wolf
>= 0, <= 1.8.1CNA affecteddefault unaffected

CVSS Data

CVSS version used by this source: 4.0

8.7HIGH

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
VS Confidentiality
NONE
VS Integrity
NONE
VS Availability
HIGH
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.40%
Probability of exploitation in next 30 days
EPSS Percentile
33.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0040 is in the 12th percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2025-34458Important

github.com/wb2osz/direwolf: Dire Wolf: Denial of Service via malformed APRS MIC-E messages

Dec 22, 2025

References

github.com / marlinkcyber/advisories/blob/main/advisories/MCSAID-2025-010-direwolf-stack-buffer-overflow-kiss-frame.md
github.com / wb2osz/direwolf/commit/3658a87
github.com / wb2osz/direwolf/issues/618
vulncheck.com / advisories/wb2osz-direwolf-reachable-assertion-dos