CVE-2025-34457
wb2osz/direwolf <= 1.8.1 Stack-based Buffer Overflow DoS
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.
| CWE | CWE-121 |
| Vendor | wb2osz |
| Product | dire wolf |
| Published | Dec 22, 2025 |
| Last Updated | Mar 23, 2026 |
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