CVE-2023-34188
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 1.0%
exploitation probability
1.0%top 38% of all CVEs
observed exploitation
nono source reports it
The HTTP server in Mongoose before 7.10 accepts requests containing negative Content-Length headers. By sending a single attack payload over TCP, an attacker can cause an infinite loop in which the server continuously reparses that payload, and does not respond to any other requests.
Affected products
n/a · n/aReferences
https://blog.narfindustries.com/blog/narf-discovers-critical-vulnerabilities-in-cesanta-mongoose-http-serverhttps://github.com/cesanta/mongoose/commit/4663090a8fb036146dfe77718cff612b0101cb0fhttps://github.com/cesanta/mongoose/compare/7.9...7.10https://github.com/cesanta/mongoose/pull/2197https://security.netapp.com/advisory/ntap-20250228-0001/