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TI-2017-09085 Aliases CVE-2017-12309GHSA-fr94-63q7-g53g

HTTP response splitting in Cisco Email Security Appliance

Priority LOW 27CWE-113Published · 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 3.0 · NVD. Fix status from CNA.

Summary

A vulnerability in the Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to conduct a HTTP response splitting attack. The 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. An exploit could allow the attacker to perform cross-site scripting attacks, cross-user defacement, web cache poisoning, and similar exploits. Cisco Bug IDs: CSCvf16705.

Why it matters now

EPSS 0.01656 76th 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
—Cisco Email Security ApplianceCisco Email Security Appliance—No fix listedCNA
  • Cisco Email Security Appliance Vendor— Affected Cisco Email Security Appliance Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:cisco:email_security_appliance_firmware:10.0.2-020:*:*:*:*:*:*:*10.0.2-020VulnerableCisco
cpe:2.3:o:cisco:email_security_appliance_firmware:11.0.0-105:*:*:*:*:*:*:*11.0.0-105VulnerableCisco
  • cpe:2.3:o:cisco:email_security_appliance_firmware:10.0.2-020:*:*:*:*:*:*:* Versions 10.0.2-020 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:email_security_appliance_firmware:11.0.0-105:*:*:*:*:*:*:* Versions 11.0.0-105 Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-12309
  2. 2026-10-03 Alias added: GHSA-fr94-63q7-g53g

References

Advisory 1

  • TI-2018-11013 Cisco Email Security Appliance Memory Corruption Denial of Service Vulnerability CVSS 3.1HIGH 8.6
  • TI-2016-05488 Cisco IronPort AsyncOS 9.1.2-023, 9.1.2-028, 9.1.2-036, 9.7.2-046, 9.7.2-047, 9.7.2-054… CVSS 3.0CRITICAL 9.8
  • TI-2019-12004 Clam AntiVirus (ClamAV) Software Email Parsing Vulnerability CVSS 3.1HIGH 7.5
  • TI-2019-01575 Cisco Email Security Appliance Header Injection Vulnerability CVSS 3.1HIGH 7.5
  • TI-2014-01669 The End User Safelist/Blocklist (aka SLBL) service in Cisco AsyncOS Software for Email… CVSS 2.0HIGH 8.5
  • TI-2019-09501 Cisco Email Security Appliance Filter Bypass Vulnerability CVSS 3.1HIGH 7.5
See all 26 →

Sources

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