CVE-2025-34457

wb2osz/direwolf (Dire Wolf) versions up to and including 1.8, prior to commit 694c954, contain a stack-based buffer overflow vulnerability in the function kiss_rec_byte() located in src/kiss_frame.c. When processing crafted KISS frames that reach the maximum allowed frame length (MAX_KISS_LEN), the function appends a terminating FEND byte without reserving sufficient space in the stack buffer. This results in an out-of-bounds write followed by an out-of-bounds read during the subsequent call to kiss_unwrap(), leading to stack memory corruption or application crashes. This vulnerability may allow remote unauthenticated attackers to trigger a denial-of-service condition.

CVSS

No CVSS.

References

Link	Resource
https://github.com/marlinkcyber/advisories/blob/main/advisories/MCSAID-2025-010-direwolf-stack-buffer-overflow-kiss-frame.md
https://github.com/wb2osz/direwolf/commit/694c954
https://github.com/wb2osz/direwolf/issues/617
https://www.vulncheck.com/advisories/wb2osz-direwolf-stack-based-buffer-overflow-dos

Configurations

No configuration.

History

22 Dec 2025, 22:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-12-22 22:16

Updated : 2025-12-23 14:51

NVD link : CVE-2025-34457

Mitre link : CVE-2025-34457

CVE.ORG link : CVE-2025-34457

JSON object : View

Products Affected

No product.

CWE

CWE-121

Stack-based Buffer Overflow

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