Buffer overflow in 9bis Kitty

CVE-2024-25003

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

Vulnerability class: Buffer Overflow

EPSS: 0.018 (77.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2024-25003?
CVE-2024-25003 is a high-severity vulnerability in 9bis Kitty, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2024-02-09.
How severe is CVE-2024-25003?
High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2024-25003 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.