Improper input validation in Cisco Email Security Appliance through 9.7.1-000
Priority LOW 36CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA.
Summary
A vulnerability in local FTP to the Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to cause a partial denial of service (DoS) condition when the FTP application unexpectedly quits. More Information: CSCux68539. Known Affected Releases: 9.1.0-032 9.7.1-000. Known Fixed Releases: 9.1.1-038.
Why it matters now
EPSS 0.01747 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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | Cisco Email Security Appliance (ESA) through 9.7.1-000 | Cisco Email Security Appliance (ESA) through 9.7.1-000 | — | No fix listed | CNA |
- Cisco Email Security Appliance (ESA) through 9.7.1-000 Vendor— Affected Cisco Email Security Appliance (ESA) through 9.7.1-000 Fixed in — No fix listed CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:cisco:email_security_appliance:9.7.1-066:*:*:*:*:*:*:* | 9.7.1-066 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:email_security_appliance:9.7.2-046:*:*:*:*:*:*:* | 9.7.2-046 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:email_security_appliance:9.7.2-047:*:*:*:*:*:*:* | 9.7.2-047 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:email_security_appliance:9.7.2-054:*:*:*:*:*:*:* | 9.7.2-054 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:email_security_appliance:9.9.6-026:*:*:*:*:*:*:* | 9.9.6-026 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:email_security_appliance:9.9_base:*:*:*:*:*:*:* | 9.9_base | Vulnerable | Cisco |
- cpe:2.3:a:cisco:email_security_appliance:9.7.1-066:*:*:*:*:*:*:* Versions 9.7.1-066 Vulnerable ·Cisco
- cpe:2.3:a:cisco:email_security_appliance:9.7.2-046:*:*:*:*:*:*:* Versions 9.7.2-046 Vulnerable ·Cisco
- cpe:2.3:a:cisco:email_security_appliance:9.7.2-047:*:*:*:*:*:*:* Versions 9.7.2-047 Vulnerable ·Cisco
- cpe:2.3:a:cisco:email_security_appliance:9.7.2-054:*:*:*:*:*:*:* Versions 9.7.2-054 Vulnerable ·Cisco
- cpe:2.3:a:cisco:email_security_appliance:9.9.6-026:*:*:*:*:*:*:* Versions 9.9.6-026 Vulnerable ·Cisco
- cpe:2.3:a:cisco:email_security_appliance:9.9_base:*:*:*:*:*:*:* Versions 9.9_base Vulnerable ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2016-6358
- 2026-10-03 Alias added: GHSA-2qcm-46qf-rxjj
References
More Cisco Email Security Appliance vulnerabilities
- 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
Sources
- CVE-2016-6358 · CVE Program
- CVE-2016-6358 · NVD
- FIRST EPSS
- GHSA-2qcm-46qf-rxjj · GitHub Advisory Database · CC BY 4.0
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