How severe is CVE-2024-20272?

CVE-2024-20272 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2024-20272 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-20272?

CVE-2024-20272 affects Cisco Unity Connection. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-20272?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2024-20272 have an EU (EUVD) identifier?

Yes. CVE-2024-20272 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-17987.

When was CVE-2024-20272 published?

CVE-2024-20272 was published on 2024-01-17 and last updated on 2026-06-17.

CVE-2024-20272

CVE-2024-20272 is a high-severity vulnerability in Cisco Unity Connection with a CVSS 3.x base score of 7.3. 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-434.

Key facts

Severity: High (CVSS 3.x base score 7.3)
EPSS exploit prediction: 2% (74th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-17987
Weakness: CWE-434
Affected product: Cisco Unity Connection
Published: 2024-01-17
Last modified: 2026-06-17

Description

A vulnerability in the web-based management interface of Cisco Unity Connection could allow an unauthenticated, remote attacker to upload arbitrary files to an affected system and execute commands on the underlying operating system. This vulnerability is due to a lack of authentication in a specific API and improper validation of user-supplied data. An attacker could exploit this vulnerability by uploading arbitrary files to an affected system. A successful exploit could allow the attacker to store malicious files on the system, execute arbitrary commands on the operating system, and elevate privileges to root.

Frequently asked questions

What is CVE-2024-20272?: A vulnerability in the web-based management interface of Cisco Unity Connection could allow an unauthenticated, remote attacker to upload arbitrary files to an affected system and execute commands on the underlying operating system. This vulnerability is due to a lack of authentication in a specific API and improper validation of user-supplied data. An attacker could exploit this vulnerability by uploading arbitrary files to an affected system. A successful exploit could allow the attacker to store malicious files on the system, execute arbitrary commands on the operating system, and elevate privileges to root.
How severe is CVE-2024-20272?: CVE-2024-20272 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2024-20272 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-20272?: CVE-2024-20272 affects Cisco Unity Connection. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-20272?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2024-20272 have an EU (EUVD) identifier?: Yes. CVE-2024-20272 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-17987.
When was CVE-2024-20272 published?: CVE-2024-20272 was published on 2024-01-17 and last updated on 2026-06-17.

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cuc-unauth-afu-FROYsCsD

Affected products (1)

cpe:2.3:a:cisco:unity_connection:*:*:*:*:*:*:*:*

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