CVE catalog

CVE-2020-13977

nagios4: CVE-2020-13977

Severity: Medium · CVSS 4.9CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
Published: Jun 9, 2020, 2:15:00 PM UTC
Source: [NVD] · [CVE record]
EPSS: 2.73% · Oct 25, 2026

Nagios 4.4.5 allows an attacker, who already has administrative access to change the "URL for JSON CGIs" configuration setting, to modify the Alert Histogram and Trends code via crafted versions of the archivejson.cgi, objectjson.cgi, and statusjson.cgi files. NOTE: this vulnerability has been mistakenly associated with CVE-2020-1408.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	nagios4	sid	`4.5.14+ds-1`	fixed
Debian	nagios4	forky	`4.5.14+ds-1`	fixed
Debian	nagios4	trixie	`4.4.6-4.1+deb13u1`	fixed
Debian	nagios4	trixie-security	`4.4.6-4.1+deb13u2`	fixed
Debian	nagios4	bookworm	`4.4.6-4+deb12u1`	fixed
Debian	nagios4	bookworm-security	`4.4.6-4+deb12u2`	fixed
Suse	nagios	package hub 15 sp2	`4.4.6-bp152.2.3.1`	fixed
Opensuse	nagios	leap 15.2	`4.4.6-lp152.2.3.1`	fixed
Ubuntu	nagios4	20.04	`4.3.4-3`	vulnerable
Ubuntu	nagios4	20.04	`4.3.4-3ubuntu0.1`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	nagios4	source	sid	`4.3.4-4`	not yet assigned	Not reported	[962826]
Debian	nagios4	source	forky	`4.3.4-4`	not yet assigned	Not reported	[962826]
Debian	nagios4	source	trixie	`4.3.4-4`	not yet assigned	Not reported	[962826]
Debian	nagios4	source	bookworm	`4.3.4-4`	not yet assigned	Not reported	[962826]
Suse	nagios	rpm	package hub 15 sp2	`4.4.6-bp152.2.3.1`	Not reported	OPENSUSE-SU-2021:0735-1	Not reported
Opensuse	nagios	rpm	leap 15.2	`4.4.6-lp152.2.3.1`	Not reported	OPENSUSE-SU-2021:0715-1	Not reported

[Debian bug #962826]

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

[nagios4]Unknown
Details (4)
- 4.4.6-4+deb12u1 · amd64 · bookworm
  Fixed · Fixed: 4.3.4-4
  dsa · nagios4 · debian · bookworm
- 4.4.6-4+deb12u1 · arm64 · bookworm
  Fixed · Fixed: 4.3.4-4
  dsa · nagios4 · debian · bookworm
- 4.4.6-4+deb12u1 · amd64 · bookworm-security
  Fixed · Fixed: 4.3.4-4
  dsa · nagios4 · debian · bookworm
- 4.4.6-4+deb12u1 · arm64 · bookworm-security
  Fixed · Fixed: 4.3.4-4
  dsa · nagios4 · debian · bookworm
[nagios4-cgi]Unknown
Source package: [nagios4]
Details (4)
- 4.4.6-4+deb12u1 · amd64 · bookworm
  Fixed · Fixed: 4.3.4-4
  dsa · nagios4 · debian · bookworm
- 4.4.6-4+deb12u1 · arm64 · bookworm
  Fixed · Fixed: 4.3.4-4
  dsa · nagios4 · debian · bookworm
- 4.4.6-4+deb12u1 · amd64 · bookworm-security
  Fixed · Fixed: 4.3.4-4
  dsa · nagios4 · debian · bookworm
- 4.4.6-4+deb12u1 · arm64 · bookworm-security
  Fixed · Fixed: 4.3.4-4
  dsa · nagios4 · debian · bookworm
[nagios4-common]Unknown
Source package: [nagios4]
Details (4)
- 4.4.6-4+deb12u1 · all · bookworm
  Fixed · Fixed: 4.3.4-4
  dsa · nagios4 · debian · bookworm
- 4.4.6-4+deb12u1 · all · bookworm
  Fixed · Fixed: 4.3.4-4
  dsa · nagios4 · debian · bookworm
- 4.4.6-4+deb12u1 · all · bookworm-security
  Fixed · Fixed: 4.3.4-4
  dsa · nagios4 · debian · bookworm
- 4.4.6-4+deb12u1 · all · bookworm-security
  Fixed · Fixed: 4.3.4-4
  dsa · nagios4 · debian · bookworm
[nagios4-core]Unknown
Source package: [nagios4]
Details (4)
- 4.4.6-4+deb12u1 · amd64 · bookworm
  Fixed · Fixed: 4.3.4-4
  dsa · nagios4 · debian · bookworm
- 4.4.6-4+deb12u1 · arm64 · bookworm
  Fixed · Fixed: 4.3.4-4
  dsa · nagios4 · debian · bookworm
- 4.4.6-4+deb12u1 · amd64 · bookworm-security
  Fixed · Fixed: 4.3.4-4
  dsa · nagios4 · debian · bookworm
- 4.4.6-4+deb12u1 · arm64 · bookworm-security
  Fixed · Fixed: 4.3.4-4
  dsa · nagios4 · debian · bookworm

Observed: Oct 23, 2026, 5:47:45 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]