Is CVE-2024-20421 in the CISA KEV catalog?

No. CVE-2024-20421 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2024-20421?

CVE-2024-20421 has a CVSS v3 base score of 7.1 (HIGH).

What is the EPSS score for CVE-2024-20421?

CVE-2024-20421 has an EPSS score of 0.24% (14th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2024-20421?

Upgrade ata 191 firmware to 11.2.5 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2024-20421

HIGH

7.1

CVSS v3

NVD

Description

A vulnerability in the web-based management interface of Cisco ATA 190 Series Analog Telephone Adapter firmware could allow an unauthenticated, remote attacker to conduct a cross-site request forgery (CSRF) attack and perform arbitrary actions on an affected device. This vulnerability is due to insufficient CSRF protections for the web-based management interface of an affected device. An attacker could exploit this vulnerability by persuading a user to follow a crafted link. A successful exploit could allow the attacker to perform arbitrary actions on the affected device with the privileges of the targeted user.

CWE-352Cross-Site Request Forgery

How to fix

Remediation Available

ata 191 firmwareNVD

Affected:< 11.2.5Fixed in:11.2.5CVE-2024-20421derived from NVD

ata 192 firmwareNVD

Affected:< 11.2.5Fixed in:11.2.5CVE-2024-20421derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityLow

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L

Exploit Intelligence

0.24%probability of exploitation in 30 days

14thpercentile

Low risk: more likely to be exploited than 14% of all known CVEs.

References

Vendor Advisory1

sec.cloudapps.cisco.com

Related Vulnerabilities

Other CWE-352 (Cross-Site Request Forgery) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2016-6277	High	8.8	100%	KEV	-
CVE-2014-0054	Medium	6.8	91%	-	Fix
CVE-2013-6429	Medium	6.8	90%	-	Fix
CVE-2022-41622	High	8.8	88%	-	-
CVE-2018-7700	High	8.8	75%	-	-
CVE-2015-2295	Medium	6.8	66%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-10-31.