In Xymon through 4.3.28, a buffer overflow vulnerability exists in the csvinfo CGI script. The overflow may be exploited by sending a crafted GET request that triggers an sprintf of the srcdb parameter.
https://lists.debian.org/debian-lts-announce/2019/08/msg00032.html
https://github.com/svn2github/xymon/blob/master/branches/4.3.28/web/csvinfo.c
Source: Mitre, NVD
Published: 2019-08-27
Updated: 2020-08-24
Base Score: 7.5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P
Severity: High
Base Score: 9.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity: Critical
EPSS: 0.00474