CVE-2025-63649

CVSS 7.5 HIGHEPSS 1.0%CWE-125

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 7.5EPSS 1.0%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

29 Jan 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

An out-of-bounds read in the http_parser_transfer_encoding_chunked function (mk_server/mk_http_parser.c) of monkey commit f37e984 allows attackers to cause a Denial of Service (DoS) via sending a crafted POST request to the server.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

n/a · n/a

References

https://github.com/archersec/security-advisories/blob/master/monkey/monkey-advisory-2025.md https://github.com/monkey/monkey/issues/426