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TI-2016-05539 Aliases CVE-2016-6458GHSA-59rc-rp6p-jq6c

Improper input validation in Cisco AsyncOS 10.0.0-125 and 9.7.1-066

Priority LOW 37CWE-20Published · Updated

Key facts

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

Attack profile from CVSS 3.0 · NVD. Fix status from CNA.

Summary

A vulnerability in the content filtering functionality of Cisco AsyncOS Software for Cisco Email Security Appliances could allow an unauthenticated, remote attacker to bypass content filters configured on an affected device. Email that should have been filtered could instead be forwarded by the device. This vulnerability affects all releases prior to the first fixed release of Cisco AsyncOS Software for Cisco Email Security Appliances, both virtual and hardware appliances, if the software is configured to use a content filter for email attachments that are protected or encrypted. More Information: CSCva52546. Known Affected Releases: 10.0.0-125 9.7.1-066.

Why it matters now

EPSS 0.02207 82nd 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 AsyncOS 10.0.0-125 and 9.7.1-066Cisco AsyncOS 10.0.0-125 and 9.7.1-066—No fix listedCNA
  • Cisco AsyncOS 10.0.0-125 and 9.7.1-066 Vendor— Affected Cisco AsyncOS 10.0.0-125 and 9.7.1-066 Fixed in — No fix listed CNA

CPE configurations NVD · 8

CPEVersionsRoleVendor
cpe:2.3:o:cisco:email_security_appliance_firmware:9.7.1-066:*:*:*:*:*:*:*9.7.1-066VulnerableCisco
cpe:2.3:o:cisco:email_security_appliance_firmware:9.7.2-046:*:*:*:*:*:*:*9.7.2-046VulnerableCisco
cpe:2.3:o:cisco:email_security_appliance_firmware:9.7.2-047:*:*:*:*:*:*:*9.7.2-047VulnerableCisco
cpe:2.3:o:cisco:email_security_appliance_firmware:9.7.2-054:*:*:*:*:*:*:*9.7.2-054VulnerableCisco
cpe:2.3:o:cisco:email_security_appliance_firmware:9.9.6-026:*:*:*:*:*:*:*9.9.6-026VulnerableCisco
cpe:2.3:o:cisco:email_security_appliance_firmware:9.9_base:*:*:*:*:*:*:*9.9_baseVulnerableCisco
cpe:2.3:o:cisco:email_security_appliance_firmware:10.0.0-124:*:*:*:*:*:*:*10.0.0-124VulnerableCisco
cpe:2.3:o:cisco:email_security_appliance_firmware:10.0.0-125:*:*:*:*:*:*:*10.0.0-125VulnerableCisco
  • cpe:2.3:o:cisco:email_security_appliance_firmware:9.7.1-066:*:*:*:*:*:*:* Versions 9.7.1-066 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:email_security_appliance_firmware:9.7.2-046:*:*:*:*:*:*:* Versions 9.7.2-046 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:email_security_appliance_firmware:9.7.2-047:*:*:*:*:*:*:* Versions 9.7.2-047 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:email_security_appliance_firmware:9.7.2-054:*:*:*:*:*:*:* Versions 9.7.2-054 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:email_security_appliance_firmware:9.9.6-026:*:*:*:*:*:*:* Versions 9.9.6-026 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:email_security_appliance_firmware:9.9_base:*:*:*:*:*:*:* Versions 9.9_base Vulnerable ·Cisco
  • cpe:2.3:o:cisco:email_security_appliance_firmware:10.0.0-124:*:*:*:*:*:*:* Versions 10.0.0-124 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:email_security_appliance_firmware:10.0.0-125:*:*:*:*:*:*:* Versions 10.0.0-125 Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2016-6458
  2. 2026-10-03 Alias added: GHSA-59rc-rp6p-jq6c

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