CVE-2021-45966
CVE-2021-45966 is a critical-severity vulnerability in Pascom Cloud Phone System with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- CVSS v2: 10.0
- EPSS exploit prediction: 6% (92nd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-78
- Affected product: Pascom Cloud Phone System
- Published:
- Last modified:
Description
An issue was discovered in Pascom Cloud Phone System before 7.20.x. In the management REST API, /services/apply in exd.pl allows remote attackers to execute arbitrary code via shell metacharacters.
Frequently asked questions
- What is CVE-2021-45966?
- An issue was discovered in Pascom Cloud Phone System before 7.20.x. In the management REST API, /services/apply in exd.pl allows remote attackers to execute arbitrary code via shell metacharacters.
- How severe is CVE-2021-45966?
- CVE-2021-45966 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2021-45966 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-45966?
- CVE-2021-45966 affects Pascom Cloud Phone System. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-45966?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2021-45966 published?
- CVE-2021-45966 was published on 2022-03-18 and last updated on 2026-06-17.
References
- https://kerbit.io/research/read/blog/4
- https://tutorialboy24.blogspot.com/2022/03/the-story-of-3-bugs-that-lead-to.html
- https://www.pascom.net/doc/en/release-notes/
Affected products (1)
- cpe:2.3:a:pascom:cloud_phone_system:*:*:*:*:*:*:*:*
More vulnerabilities in Pascom Cloud Phone System
- CVE-2021-45967 — Critical (CVSS 9.8): An issue was discovered in Pascom Cloud Phone System before 7.20.x. A configuration error between NGINX and a backend…
- CVE-2021-45968 — High (CVSS 7.5): An issue was discovered in xmppserver jar in the XMPP Server component of the JIve platform, as used in Pascom Cloud…
All CVEs affecting Pascom Cloud Phone System →
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