How severe is CVE-2024-20255?

CVE-2024-20255 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability low.

Is CVE-2024-20255 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-20255?

CVE-2024-20255 affects Cisco Expressway. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-20255?

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-2024-20255 have an EU (EUVD) identifier?

Yes. CVE-2024-20255 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-17970.

When was CVE-2024-20255 published?

CVE-2024-20255 was published on 2024-02-07 and last updated on 2026-06-17.

CVE-2024-20255

CVE-2024-20255 is a high-severity vulnerability in Cisco Expressway with a CVSS 3.x base score of 8.2. 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-352.

Key facts

Severity: High (CVSS 3.x base score 8.2)
EPSS exploit prediction: 1% (45th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-17970
Weakness: CWE-352
Affected product: Cisco Expressway
Published: 2024-02-07
Last modified: 2026-06-17

Description

A vulnerability in the SOAP API of Cisco Expressway Series and Cisco TelePresence Video Communication Server could allow an unauthenticated, remote attacker to conduct a cross-site request forgery (CSRF) attack on an affected system. This vulnerability is due to insufficient CSRF protections for the web-based management interface of an affected system. An attacker could exploit this vulnerability by persuading a user of the REST API to follow a crafted link. A successful exploit could allow the attacker to cause the affected system to reload.

Frequently asked questions

What is CVE-2024-20255?: A vulnerability in the SOAP API of Cisco Expressway Series and Cisco TelePresence Video Communication Server could allow an unauthenticated, remote attacker to conduct a cross-site request forgery (CSRF) attack on an affected system. This vulnerability is due to insufficient CSRF protections for the web-based management interface of an affected system. An attacker could exploit this vulnerability by persuading a user of the REST API to follow a crafted link. A successful exploit could allow the attacker to cause the affected system to reload.
How severe is CVE-2024-20255?: CVE-2024-20255 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability low.
Is CVE-2024-20255 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-20255?: CVE-2024-20255 affects Cisco Expressway. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-20255?: 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-2024-20255 have an EU (EUVD) identifier?: Yes. CVE-2024-20255 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-17970.
When was CVE-2024-20255 published?: CVE-2024-20255 was published on 2024-02-07 and last updated on 2026-06-17.

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-expressway-csrf-KnnZDMj3

Affected products (1)

cpe:2.3:a:cisco:expressway:*:*:*:*:*:*:*:*

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