CVE-2022-20772

MEDIUM
5.3
CVSS Score
Published: November 3, 2022 at 07:32 PM UTC
Updated: June 17, 2026 at 04:25 AM UTC
4 products affected across 1 vendorEmail Security Appliance FirmwareSecure Email and Web Manager FirmwareEmail Security Appliance

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.6%
SSVC
No known exploit

Description

A vulnerability in Cisco Email Security Appliance (ESA) and Cisco Secure Email and Web Manager could allow an unauthenticated, remote attacker to conduct an HTTP response splitting attack. This vulnerability is due to the failure of the application or its environment to properly sanitize input values. An attacker could exploit this vulnerability by injecting malicious HTTP headers, controlling the response body, or splitting the response into multiple responses.

Affected

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

13.5.1 ≤ v < 14.0.3-01514.1 ≤ v < 14.2.1-01514.3 ≤ v < 14.3.0-023
Affected range stops below 14.0.3-015, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.2.1-015, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.3.0-023, so it looks safe — our inference, not a vendor statement
cisco-email-security-appliance (same device)
14.2 ≤ v < 14.2.0-21714.3 ≤ v < 14.3.0-115
Affected range stops below 14.2.0-217, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.3.0-115, so it looks safe — our inference, not a vendor statement
cisco-content-security-management-appliance (same device)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

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
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-113CWE-74

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