CVE-2021-45967Cloud Phone System Path Traversal
A configuration error between NGINX and a backend Tomcat server leads to a path traversal in the Tomcat server, exposing unintended endpoints.
Published Mar 18, 2022 · Updated Oct 20, 2026 · Also known as BIT-openfire-2021-45967
Key Facts
Patch immediately- CVE-2021-45967 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Openfire (Igniterealtime), Cloud Phone System (Pascom).
- It is exploited in the wild, listed in CIRCL KEV, Industry KEV feed since Mar 18, 2022. A public exploit is reported by tracking sources, but no code link is listed yet.
- EPSS estimates a 21% probability of exploitation in the next 30 days.
- Fixed versions are available, including Openfire 4.5.0, Cloud Phone System <=7.19, Cloud Phone System 7.19.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
Scores
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
21%
Higher than 97.5% of all scored CVEs
Exploit maturity
Exploited (KEV)
ATLAS score
51/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Mar 18, 2022
0 days after publication
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Exploited (KEV)
Public exploit code
0
Proof-of-concept links
In-the-wild evidence
10
Reports of active use
Advisories And Exploit References
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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CIRCL KEV | Mar 18, 2022 | n/a | Not reported |
| Industry KEV feed | Mar 18, 2022 | n/a | Not reported |
Affected Products
4 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| OpenfireIgniterealtime | 4.5.0 | 4.5.0 |
| Cloud Phone SystemPascom | See advisory | 7.19 |
Patched Releases
Openfire
4.5.0
Cloud Phone System
<=7.19
Timeline
Publicly disclosed
Mar 18, 2022
Added to CIRCL KEV
Mar 18, 2022
Added to Industry KEV feed
Mar 18, 2022
Last updated
Oct 20, 2026
Weakness Type
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
References
- advisorypascom.net · release-notes
- advisorypascom.net · pascom19
- patchkerbit.io · 4
- patchtutorialboy24.blogspot.com · the-story-of-3-bugs-that-lead-to.html
- exploitVulnCheck exploitation report
FAQ
Common Questions.
An issue was discovered in Pascom Cloud Phone System before 7.20.x.
Affected: Openfire (Igniterealtime) versions 4.5.0; Cloud Phone System (Pascom). The full list is in the CVE brief.
It is exploited in the wild, listed in CIRCL KEV, Industry KEV feed since Mar 18, 2022.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
A public exploit is reported by tracking sources, but no code link is listed yet.
Fixed versions are available, including Openfire 4.5.0, Cloud Phone System <=7.19, Cloud Phone System 7.19.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
Is CVE-2021-45967 On Your Attack Surface?
Brandefense matches it against the products discovered on your perimeter and opens a finding the day a CVE like this is listed.
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