← Vulnerability feed

Vulnerability record · CVE-2025-63652 · published 29 January 2026

CVE-2025-63652: Monkey-project monkey use after free vulnerability

Monkey Project · Monkey

A use-after-free in the mk_http_request_end function (mk_server/mk_http.c) of monkey commit f37e984 allows attackers to cause a Denial of Service (DoS) via sending a crafted HTTP request to the server.

7.5 CVSS 3.1 High EPSS 1.2% · top 32.8% CWE-416 · Use after free
7.5CVSS 3.1 base score
1.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

A use-after-free in the mk_http_request_end function (mk_server/mk_http.c) of monkey commit f37e984 allows attackers to cause a Denial of Service (DoS) via sending a crafted HTTP 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

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/archersec/security-advisories/blob/master/monkey/monkey-advisory-2025.md ExploitThird Party Advisory
https://github.com/monkey/monkey/issues/426 Exploit

Track CVE-2025-63652 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2013-2159Monkey-project monkey improper authentication vulnerabilityMonkey HTTP Daemon: broken user name authenticationEPSS 2.8%7.5CVE-2025-63656Monkey-project monkey out-of-bounds read vulnerabilityAn out-of-bounds read in the header_cmp function (mk_server/mk_http_parser.c) of monkey commit f37e984 allows attackers to cause a Denial of Service …EPSS 1.2%7.5CVE-2025-63657Monkey-project monkey out-of-bounds read vulnerabilityAn out-of-bounds read in the mk_mimetype_find function (mk_server/mk_mimetype.c) of monkey commit f37e984 allows attackers to cause a Denial of Servi…EPSS 1.2%7.5CVE-2025-63658Monkey-project monkey stack-based buffer overflow vulnerabilityA stack overflow in the mk_http_index_lookup function (mk_server/mk_http.c) of monkey commit f37e984 allows attackers to cause a Denial of Service (D…EPSS 1.3%7.5CVE-2025-63649Monkey-project monkey out-of-bounds read vulnerabilityAn 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…EPSS 1.1%7.5CVE-2025-63650Monkey-project monkey out-of-bounds read vulnerabilityAn out-of-bounds read in the mk_ptr_to_buf in mk_core function (mk_memory.c) of monkey commit f37e984 allows attackers to cause a Denial of Service (…EPSS 1.2%7.5CVE-2025-63651Monkey-project monkey use after free vulnerabilityA use-after-free in the mk_string_char_search function (mk_core/mk_string.c) of monkey commit f37e984 allows attackers to cause a Denial of Service (…EPSS 1.1%7.5CVE-2025-63653Monkey-project monkey out-of-bounds read vulnerabilityAn out-of-bounds read in the mk_vhost_fdt_close function (mk_server/mk_vhost.c) of monkey commit f37e984 allows attackers to cause a Denial of Servic…EPSS 1.2%

Source: NIST National Vulnerability Database (record CVE-2025-63652), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.