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Fencer Vulns
high 7.8

CVE-2024-25004 json

KiTTY versions 0.76.1.13 and before is vulnerable to a stack-based buffer overflow via the username, occurs due to insufficient bounds chec…

published 2024-02-09 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-22366

cvss
7.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.8%
EPSS 1.8% chance of exploitation in 30 days, percentile 78%
public exploits
1
Exploit-DB

Summary

KiTTY versions 0.76.1.13 and before is vulnerable to a stack-based buffer overflow via the username, occurs due to insufficient bounds checking and input sanitization (at line 2600). This allows an attacker to overwrite adjacent memory, which leads to arbitrary code execution.

Timeline

  1. Published
  2. First public exploit (EDB-51891)

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
total
Assessed
18 mo ago

Exploit prediction

1.78% chance of exploitation in the next 30 days, higher than 78% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-51891 KiTTY 0.76.1.13 - 'Start Duplicated Session Username' Buffer Overflow local, 2024-03-14
  • blog.defcesco.io https://blog.defcesco.io/CVE-2024-25003-CVE-2024-25004 referenced PoC, tagged "exploit" by a source, unverified
  • seclists.org http://seclists.org/fulldisclosure/2024/Feb/13 referenced PoC, tagged "exploit" by a source, unverified
  • seclists.org http://seclists.org/fulldisclosure/2024/Feb/14 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Classification

Weakness

References

Sources

Fencer Vulns 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.