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CVE-2022-20871

28
FAUCET Score

CVE-2022-20871 is a high-severity command injection vulnerability in the web management interface of Cisco AsyncOS for Cisco Secure Web Appliance. It allows an authenticated, remote attacker with at least read-only credentials to execute arbitrary commands and elevate privileges to root due to insufficient input validation. The vulnerability has a CVSS score of 8.8 (High) and could lead to full compromise of the underlying operating system. While Cisco has released software updates, there are no known workarounds. There is no evidence of active exploitation, nor are there public exploit modules available in Metasploit, Nuclei, or ExploitDB, though it has received some community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
12.5.1-011CPE matchmatch criteria
cpe:2.3:o:cisco:asyncos:12.5.1-011:*:*:*:*:*:*:*
12.5.2-007CPE matchmatch criteria
cpe:2.3:o:cisco:asyncos:12.5.2-007:*:*:*:*:*:*:*
12.5.2-011CPE matchmatch criteria
cpe:2.3:o:cisco:asyncos:12.5.2-011:*:*:*:*:*:*:*
12.5.3-002CPE matchmatch criteria
cpe:2.3:o:cisco:asyncos:12.5.3-002:*:*:*:*:*:*:*
12.5.4-005CPE matchmatch criteria
cpe:2.3:o:cisco:asyncos:12.5.4-005:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
2.8
Impact Score
3.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.86%
Probability of exploitation in next 30 days
EPSS Percentile
77.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0186 is in the 75th percentile among its peer group of 17,805 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

sec.cloudapps.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-bw-thinrcpt-xss-gSj4CecU
Not Applicable
sec.cloudapps.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-cssm-priv-esc-SEjz69dv
Not Applicable
sec.cloudapps.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-wsa-prv-esc-8PdRU8t8
Vendor Advisory