What is CVE-2022-20653?

CVE-2022-20653 is a high-severity vulnerability in Cisco Asyncos, classified under CWE-399. CVSS score: 7.5/10. Published 2022-02-17.

How severe is CVE-2022-20653?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2022-20653 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Cisco Asyncos

CVE-2022-20653

A vulnerability in the DNS-based Authentication of Named Entities (DANE) email verification component of Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to cause a denial of s…

EPSS: 0.018 (76.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Cisco Asyncos
Cisco Email Security Appliance (Esa) — versions n/a

Weakness classification (CWE)

CWE-399

Public proof-of-concept exploits

ARPSyndicate/cvemon

References

psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2022-20653?: CVE-2022-20653 is a high-severity vulnerability in Cisco Asyncos, classified under CWE-399. CVSS score: 7.5/10. Published 2022-02-17.
How severe is CVE-2022-20653?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2022-20653 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.