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TI-2015-05296 Aliases CVE-2015-6309GHSA-52q5-573g-349h

Cisco Email Security Appliance (ESA) 8.5.6-106 and 9.6.0-042 allows remote authenticated…

Priority LOW 33CWE-399Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · Complete
Fix status
No fix listed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-399 and the CVSS impact.

Summary

Cisco Email Security Appliance (ESA) 8.5.6-106 and 9.6.0-042 allows remote authenticated users to cause a denial of service (file-descriptor consumption and device reload) via crafted HTTP requests, aka Bug ID CSCuw32211.

Why it matters now

EPSS 0.017 77th 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
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:h:cisco:email_security_appliance:9.6.0-042:*:*:*:*:*:*:*9.6.0-042VulnerableCisco
cpe:2.3:o:cisco:email_security_appliance_firmware:8.5.6-106:*:*:*:*:*:*:*8.5.6-106VulnerableCisco
  • cpe:2.3:h:cisco:email_security_appliance:9.6.0-042:*:*:*:*:*:*:* Versions 9.6.0-042 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:email_security_appliance_firmware:8.5.6-106:*:*:*:*:*:*:* Versions 8.5.6-106 Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2015-6309
  2. 2026-10-03 Alias added: GHSA-52q5-573g-349h

References

Advisory 1

  • TI-2022-05357 Cisco Email Security Appliance and Cisco Secure Email and Web Manager External Authentication Bypass Vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2019-01567 Cisco Email Security Appliance Denial of Service Vulnerability CVSS 3.1HIGH 8.6
  • TI-2018-00378 Improper input validation in Cisco Email Security Appliance CVSS 3.0HIGH 7.5
  • TI-2020-02695 Cisco Email Security Appliance Content Filter Bypass Vulnerability CVSS 3.1HIGH 7.5
  • TI-2019-01541 Cisco Email Security Appliance Content Filter Bypass Vulnerability CVSS 3.0HIGH 7.5
  • TI-2019-01553 Cisco Email Security Appliance Content Filter Bypass Vulnerability CVSS 3.0HIGH 7.4
See all 49 →

Sources

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