What’s Vulnerable › Vulnerabilities

CVE-2019-13455

• Severity: critical (CVSS 9.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2019-08-27 · updated 2026-06-17
• Weakness: CWE-787

Description

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.

Affected products

• Debian Linux: 8.0
• Xymon: through 4.3.28

References

• https://github.com/svn2github/xymon/blob/master/branches/4.3.28/web/acknowledge.c
• https://lists.debian.org/debian-lts-announce/2019/08/msg00032.html
• https://lists.xymon.com/archive/2019-July/046570.html
• https://github.com/svn2github/xymon/blob/master/branches/4.3.28/web/acknowledge.c
• https://lists.debian.org/debian-lts-announce/2019/08/msg00032.html
• https://lists.xymon.com/archive/2019-July/046570.html

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