CVE-2025-63649 Denial of service in n/a
Attackers can cause a Denial of Service in the Monkey HTTP server by sending a crafted POST request that triggers an out-of-bounds read.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-63649?
CVE-2025-63649 is a high-severity denial of service vulnerability in n/a, published on 29 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-125
Which versions are affected by CVE-2025-63649?
It affects 1 product.
Products include Monkey-Project Monkey.
How do I fix CVE-2025-63649?
No fix has been published for CVE-2025-63649 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2025-63649 being exploited?
There is no known exploitation of CVE-2025-63649 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-mr6c-6hx8-737r.