Buffer overflow in Xymon

CVE-2019-13455

In Xymon through 4.3.28, a stack-based buffer overflow vulnerability exists in the alert acknowledgment CGI tool because of   expansion in acknowledge.c.

Vulnerability class: Buffer Overflow

EPSS: 0.020 (78.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

  • cve@mitre.org (Third Party Advisory, x_refsource_MISC)
  • cve@mitre.org (x_refsource_CONFIRM, Mailing List, Third Party Advisory)
  • cve@mitre.org (x_refsource_CONFIRM, Exploit, Mailing List, Vendor Advisory)

Frequently asked questions

What is CVE-2019-13455?
CVE-2019-13455 is a critical-severity vulnerability in Xymon, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2019-08-27.
How severe is CVE-2019-13455?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2019-13455 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.