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TI-2023-06921 Aliases CVE-2023-20215GHSA-4qcp-whvm-5mwc

A vulnerability in the scanning engines of Cisco AsyncOS Software for Cisco Secure Web…

Priority LOW 27CWE-202Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

A vulnerability in the scanning engines of Cisco AsyncOS Software for Cisco Secure Web Appliance could allow an unauthenticated, remote attacker to bypass a configured rule, allowing traffic onto a network that should have been blocked. This vulnerability is due to improper detection of malicious traffic when the traffic is encoded with a specific content format. An attacker could exploit this vulnerability by using an affected device to connect to a malicious server and receiving crafted HTTP responses. A successful exploit could allow the attacker to bypass an explicit block rule and receive traffic that should have been rejected by the device.

Why it matters now

EPSS 0.00619 49th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
CiscoCisco Secure Web Appliance11.7.0-406; 11.7.0-418; 11.7.1-049; 11.7.1-006; 11.7.1-020; 11.7.2-011; 11.8.0-414; 11.8.1-023; 11.8.3-018; 11.8.3-021; 12.0.1-268; 12.0.3-007; 12.5.2-007; 12.5.1-011; 12.5.4-005; 12.5.5-004; 14.5.0-498; 14.5.1-016; 14.0.3-014; 14.0.2-012; 14.0.4-005—No fix listedCNA
  • Cisco Secure Web Appliance VendorCisco Affected 11.7.0-406; 11.7.0-418; 11.7.1-049; 11.7.1-006; 11.7.1-020; 11.7.2-011; 11.8.0-414; 11.8.1-023; 11.8.3-018; 11.8.3-021; 12.0.1-268; 12.0.3-007; 12.5.2-007; 12.5.1-011; 12.5.4-005; 12.5.5-004; 14.5.0-498; 14.5.1-016; 14.0.3-014; 14.0.2-012; 14.0.4-005 Fixed in — No fix listed CNA

CPE configurations NVD · 32

CPEVersionsRoleVendor
cpe:2.3:o:cisco:asyncos:11.7.0-406:*:*:*:*:*:*:*11.7.0-406VulnerableCisco
cpe:2.3:o:cisco:asyncos:11.7.0-418:*:*:*:*:*:*:*11.7.0-418VulnerableCisco
cpe:2.3:o:cisco:asyncos:11.7.1-006:*:*:*:*:*:*:*11.7.1-006VulnerableCisco
cpe:2.3:o:cisco:asyncos:11.7.1-020:*:*:*:*:*:*:*11.7.1-020VulnerableCisco
cpe:2.3:o:cisco:asyncos:11.7.1-049:*:*:*:*:*:*:*11.7.1-049VulnerableCisco
cpe:2.3:o:cisco:asyncos:11.7.2-011:*:*:*:*:*:*:*11.7.2-011VulnerableCisco
cpe:2.3:o:cisco:asyncos:11.8.0-414:*:*:*:*:*:*:*11.8.0-414VulnerableCisco
cpe:2.3:o:cisco:asyncos:11.8.1-023:*:*:*:*:*:*:*11.8.1-023VulnerableCisco
cpe:2.3:o:cisco:asyncos:11.8.3-018:*:*:*:*:*:*:*11.8.3-018VulnerableCisco
cpe:2.3:o:cisco:asyncos:11.8.3-021:*:*:*:*:*:*:*11.8.3-021VulnerableCisco
  • cpe:2.3:o:cisco:asyncos:11.7.0-406:*:*:*:*:*:*:* Versions 11.7.0-406 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:asyncos:11.7.0-418:*:*:*:*:*:*:* Versions 11.7.0-418 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:asyncos:11.7.1-006:*:*:*:*:*:*:* Versions 11.7.1-006 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:asyncos:11.7.1-020:*:*:*:*:*:*:* Versions 11.7.1-020 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:asyncos:11.7.1-049:*:*:*:*:*:*:* Versions 11.7.1-049 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:asyncos:11.7.2-011:*:*:*:*:*:*:* Versions 11.7.2-011 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:asyncos:11.8.0-414:*:*:*:*:*:*:* Versions 11.8.0-414 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:asyncos:11.8.1-023:*:*:*:*:*:*:* Versions 11.8.1-023 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:asyncos:11.8.3-018:*:*:*:*:*:*:* Versions 11.8.3-018 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:asyncos:11.8.3-021:*:*:*:*:*:*:* Versions 11.8.3-021 Vulnerable ·Cisco
Show 22 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:cisco:asyncos:12.0.1-268:*:*:*:*:*:*:*12.0.1-268VulnerableCisco
cpe:2.3:o:cisco:asyncos:12.0.3-007:*:*:*:*:*:*:*12.0.3-007VulnerableCisco
cpe:2.3:o:cisco:asyncos:12.5.1-011:*:*:*:*:*:*:*12.5.1-011VulnerableCisco
cpe:2.3:o:cisco:asyncos:12.5.2-007:*:*:*:*:*:*:*12.5.2-007VulnerableCisco
cpe:2.3:o:cisco:asyncos:12.5.4-005:*:*:*:*:*:*:*12.5.4-005VulnerableCisco
cpe:2.3:o:cisco:asyncos:12.5.5-004:*:*:*:*:*:*:*12.5.5-004VulnerableCisco
cpe:2.3:o:cisco:asyncos:14.0.2-012:*:*:*:*:*:*:*14.0.2-012VulnerableCisco
cpe:2.3:o:cisco:asyncos:14.0.3-014:*:*:*:*:*:*:*14.0.3-014VulnerableCisco
cpe:2.3:o:cisco:asyncos:14.0.4-005:*:*:*:*:*:*:*14.0.4-005VulnerableCisco
cpe:2.3:o:cisco:asyncos:14.5.0-498:*:*:*:*:*:*:*14.5.0-498VulnerableCisco
cpe:2.3:o:cisco:asyncos:14.5.1-008:*:*:*:*:*:*:*14.5.1-008VulnerableCisco
cpe:2.3:o:cisco:asyncos:14.5.1-016:*:*:*:*:*:*:*14.5.1-016VulnerableCisco
cpe:2.3:h:cisco:s195:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:h:cisco:s395:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:h:cisco:s695:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:h:cisco:web_security_appliance_s170:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:h:cisco:web_security_appliance_s190:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:h:cisco:web_security_appliance_s380:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:h:cisco:web_security_appliance_s390:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:h:cisco:web_security_appliance_s680:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:h:cisco:web_security_appliance_s690:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:h:cisco:web_security_appliance_s690x:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
  • cpe:2.3:o:cisco:asyncos:12.0.1-268:*:*:*:*:*:*:* Versions 12.0.1-268 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:asyncos:12.0.3-007:*:*:*:*:*:*:* Versions 12.0.3-007 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:asyncos:12.5.1-011:*:*:*:*:*:*:* Versions 12.5.1-011 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:asyncos:12.5.2-007:*:*:*:*:*:*:* Versions 12.5.2-007 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:asyncos:12.5.4-005:*:*:*:*:*:*:* Versions 12.5.4-005 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:asyncos:12.5.5-004:*:*:*:*:*:*:* Versions 12.5.5-004 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:asyncos:14.0.2-012:*:*:*:*:*:*:* Versions 14.0.2-012 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:asyncos:14.0.3-014:*:*:*:*:*:*:* Versions 14.0.3-014 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:asyncos:14.0.4-005:*:*:*:*:*:*:* Versions 14.0.4-005 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:asyncos:14.5.0-498:*:*:*:*:*:*:* Versions 14.5.0-498 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:asyncos:14.5.1-008:*:*:*:*:*:*:* Versions 14.5.1-008 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:asyncos:14.5.1-016:*:*:*:*:*:*:* Versions 14.5.1-016 Vulnerable ·Cisco
  • cpe:2.3:h:cisco:s195:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:h:cisco:s395:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:h:cisco:s695:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:h:cisco:web_security_appliance_s170:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:h:cisco:web_security_appliance_s190:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:h:cisco:web_security_appliance_s380:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:h:cisco:web_security_appliance_s390:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:h:cisco:web_security_appliance_s680:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:h:cisco:web_security_appliance_s690:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:h:cisco:web_security_appliance_s690x:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-20215
  2. 2026-10-03 Alias added: GHSA-4qcp-whvm-5mwc

References

Advisory 1

  • TI-2026-74174 Arbitrary file write in Cisco Secure Email Gateway via AMP feature KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-53489 Cisco Secure Email Gateway SQL Injection Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2025-14683 Cisco Secure Email Gateway and Cisco Secure Email and Web Manager Remote Command Execution Vulnerability KEVCVSS 3.1CRITICAL 10.0
  • TI-2021-13698 Cisco Web Security Appliance Proxy Service Denial of Service Vulnerability CVSS 3.1HIGH 8.6
  • TI-2018-11020 Cisco Email Security Appliance URL Filtering Denial of Service Vulnerability CVSS 3.1HIGH 8.6
  • TI-2019-01567 Cisco Email Security Appliance Denial of Service Vulnerability CVSS 3.1HIGH 8.6
See all 55 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences