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TI-2017-02924 Aliases CVE-2017-3827GHSA-mr7q-8c5m-vw8x

Improper input validation in Cisco AsyncOS Software for Cisco ESA and Cisco WSA

Priority LOW 30CWE-20Published · 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 Multipurpose Internet Mail Extensions (MIME) scanner of Cisco AsyncOS Software for Cisco Email Security Appliances (ESA) and Web Security Appliances (WSA) could allow an unauthenticated, remote attacker to bypass configured user filters on the device. Affected Products: This vulnerability affects all releases prior to the first fixed release of Cisco AsyncOS Software for Cisco ESA and Cisco WSA, both virtual and hardware appliances, that are configured with message or content filters to scan incoming email attachments on the ESA or services scanning content of web access on the WSA. More Information: SCvb91473, CSCvc76500. Known Affected Releases: 10.0.0-203 9.9.9-894 WSA10.0.0-233.

Why it matters now

EPSS 0.01935 80th 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 Software for Cisco ESA and Cisco WSACisco AsyncOS Software for Cisco ESA and Cisco WSA—No fix listedCNA
  • Cisco AsyncOS Software for Cisco ESA and Cisco WSA Vendor— Affected Cisco AsyncOS Software for Cisco ESA and Cisco WSA Fixed in — No fix listed CNA

CPE configurations NVD · 12

CPEVersionsRoleVendor
cpe:2.3:a:cisco:web_security_appliance:10.0.0-082:*:*:*:*:*:*:*10.0.0-082VulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:10.0.0-124:*:*:*:*:*:*:*10.0.0-124VulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:10.0.0-125:*:*:*:*:*:*:*10.0.0-125VulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:10.0.0-203:*:*:*:*:*:*:*10.0.0-203VulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:10.0.0-232:*:*:*:*:*:*:*10.0.0-232VulnerableCisco
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:9.9.9-894:*:*:*:*:*:*:*9.9.9-894VulnerableCisco
cpe:2.3:o:cisco:email_security_appliance_firmware:10.0.0-082:*:*:*:*:*:*:*10.0.0-082VulnerableCisco
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:a:cisco:web_security_appliance:10.0.0-082:*:*:*:*:*:*:* Versions 10.0.0-082 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:10.0.0-124:*:*:*:*:*:*:* Versions 10.0.0-124 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:10.0.0-125:*:*:*:*:*:*:* Versions 10.0.0-125 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:10.0.0-203:*:*:*:*:*:*:* Versions 10.0.0-203 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:10.0.0-232:*:*:*:*:*:*:* Versions 10.0.0-232 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:9.9.9-894:*:*:*:*:*:*:* Versions 9.9.9-894 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:email_security_appliance_firmware:10.0.0-082:*:*:*:*:*:*:* Versions 10.0.0-082 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
Show 2 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:cisco:email_security_appliance_firmware:10.0.0-203:*:*:*:*:*:*:*10.0.0-203VulnerableCisco
cpe:2.3:o:cisco:email_security_appliance_firmware:10.0.0-232:*:*:*:*:*:*:*10.0.0-232VulnerableCisco
  • cpe:2.3:o:cisco:email_security_appliance_firmware:10.0.0-203:*:*:*:*:*:*:* Versions 10.0.0-203 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:email_security_appliance_firmware:10.0.0-232:*:*:*:*:*:*:* Versions 10.0.0-232 Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-3827
  2. 2026-10-03 Alias added: GHSA-mr7q-8c5m-vw8x

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