CVE-2022-20871

Cisco Secure Web Appliance Privilege Escalation Vulnerability

HIGH
8.8
CVSS Score
Published: November 15, 2024 at 03:27 PM UTC
Updated: June 17, 2026 at 04:25 AM UTC
9 products affected across 1 vendorAsyncosSecure Web Appliance S696Secure Web Appliance Virtual S300V

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Severity
HIGH8.8
Exploit prediction
EPSS 2%
SSVC
No known exploit

Description

A vulnerability in the web management interface of Cisco AsyncOS for Cisco Secure Web Appliance, formerly Cisco Web Security Appliance (WSA), could allow an authenticated, remote attacker to perform a command injection and elevate privileges to root. This vulnerability is due to insufficient validation of user-supplied input for the web interface. An attacker could exploit this vulnerability by authenticating to the system and sending a crafted HTTP packet to the affected device. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system and elevate privileges to root. To successfully exploit this vulnerability, an attacker would need at least read-only credentials.Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.Attention: Simplifying the Cisco portfolio includes the renaming of security products under one brand: Cisco Secure. For more information, see .

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

cisco-secure-web-appliance-s196 (environment) · cisco-secure-web-appliance-s396 (environment) · cisco-secure-web-appliance-s696 (environment) · cisco-secure-web-appliance-virtual-s1000v (environment) · cisco-secure-web-appliance-virtual-s100v (environment) · cisco-secure-web-appliance-virtual-s300v (environment) · cisco-secure-web-appliance-virtual-s600v (environment)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-78

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