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CVE-2022-20661

18
FAUCET Score

CVE-2022-20661 describes multiple vulnerabilities in Cisco Catalyst Digital Building Series Switches and Cisco Catalyst Micro Switches. These flaws could allow an unauthenticated attacker with physical access to execute persistent code during boot or cause a permanent denial of service by preventing the device from booting. Rated Medium severity with a CVSS score of 4.6, the attack requires physical presence and impacts availability. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 15.2\(5\)ex, < 15.2\(7\)e5CPE matchmatch criteria
cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:*
15.2\(8\)eCPE matchmatch criteria
cpe:2.3:o:cisco:ios:15.2\(8\)e:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

4.6MEDIUM

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

Attack Vector
PHYSICAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
0.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.22%
Probability of exploitation in next 30 days
EPSS Percentile
12.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0022 is in the 23rd percentile among its peer group of 1,531 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-cdb-cmicr-vulns-KJjFtNb
Vendor Advisory