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Fencer Intel
medium 6.8

CVE-2013-3843 json

Stack-based buffer overflow in the mk_request_header_process function in mk_request.c in Monkey HTTP Daemon (monkeyd) before 1.2.1 allows r…

published 12y ago modified 4mo ago also EUVD-2013-3775

cvss
6.8
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
20.2%
EPSS 20.2% chance of exploitation in 30 days, percentile 97%
public exploits
1
Metasploit

Summary

Stack-based buffer overflow in the mk_request_header_process function in mk_request.c in Monkey HTTP Daemon (monkeyd) before 1.2.1 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted HTTP header.

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Timeline

  1. First public exploit (Metasploit auxiliary/dos/http/monkey_headers)
  2. Published

Exploit prediction

20.18% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

CVSS scores

assigned by version score vector
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.