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Exploitation reportedNot in CISA KEV yetFix available

CVE-2021-45967

Exploitation reported by one source. First attested on 2023-10-14 by GCVE · shadowserver.

  • Published2022-03-18
  • Fixed in4.5.0
  • WeaknessCWE-22

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

An issue was discovered in Pascom Cloud Phone System before 7.20.x. A configuration error between NGINX and a backend Tomcat server leads to a path traversal in the Tomcat server, exposing unintended endpoints.

Timeline

dates in UTC
  1. 2022-03-1805:15CVE publishedNVD
  2. 2023-10-1417:55Listed as exploited by GCVEGCVE
  3. 2023-10-1417:55Exploitation first reportedGCVE

Observed activity

isMalicious corpus · updated 2026-11-04 09:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2021-45967?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2021-45967?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · OSV
Igniterealtime openfire
BranchAffectedFixed in
4.5< 4.5.04.5.0
4.5= 4.5.0no fix published
4.5≥ 4.5.0, ≤ 4.5.0no fix published
Pascom cloud phone system
BranchAffectedFixed in
7.19≤ 7.19no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

  1. Update Igniterealtime openfire to 4.5.0

Advisories and patches

Detection

read 2026-11-03 22:42 UTC
Nuclei template
available
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2022-03-18
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-6669-q2h5-85q9

Frequently asked questions

What is CVE-2021-45967?

An issue was discovered in Pascom Cloud Phone System before 7.20.x. A configuration error between NGINX and a backend Tomcat server leads to a path traversal in the Tomcat server, exposing unintended endpoints.

Is CVE-2021-45967 actively exploited?

A proof-of-concept exploit exists for CVE-2021-45967, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2021-45967?

CVE-2021-45967 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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Same product first, then the same vendor advisory and the same publication week.

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Sources for this record