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TI-2025-14654 Aliases CVE-2025-20359GHSA-wcv6-8jqc-wfcx

Multiple Cisco Products Snort 3 MIME Information Disclosure or Denial of Service Vulnerability

Priority MEDIUM 46CWE-127Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

Multiple Cisco products are affected by a vulnerability in the Snort 3 HTTP Decoder that could allow an unauthenticated, remote attacker to cause the disclosure of possible sensitive data or cause the Snort 3 Detection Engine to crash. This vulnerability is due to an error in the logic of buffer handling when the MIME fields of the HTTP header are parsed. This can result in a buffer under-read. An attacker could exploit this vulnerability by sending crafted HTTP packets through an established connection that is parsed by Snort 3. A successful exploit could allow the attacker to induce one of two possible outcomes: the unexpected restarting of the Snort 3 Detection Engine, which could cause a denial of service (DoS) condition, or information disclosure of sensitive information in the Snort 3 data stream. Due to the under-read condition, it is possible that sensitive information that is not valid connection data could be returned.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00481 41st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
CiscoCisco Cyber Vision3.0.0; 3.0.2; 3.0.3; 3.0.1; 3.1.0; 3.0.4; 3.1.1; 3.1.2; 3.2.0; 3.0.5; 3.2.1; 3.0.6; 3.2.2; 3.2.3; 3.2.4; 4.0.0; 4.0.1; 4.0.2; 4.0.3; 4.1.0; 4.1.1; 4.1.2; 4.1.3; 4.1.4; 4.2.0; 4.2.1; 4.1.5; 4.2.2; 4.2.X; 4.2.3; 4.2.4; 4.2.6; 4.1.6; 4.3.0; 4.3.1; 4.3.2; 4.3.3; 4.4.0; 4.4.1; 4.4.2; 4.4.3; 4.1.7; 5.0.0; 5.0.1; 5.0.2; 5.1.0; 5.1.1; 5.1.2; 5.1.3; 5.2.0; 5.2.1—No fix listedCNA
CiscoCisco Secure Firewall Threat Defense (FTD) Software7.4.1; 7.4.1.1; 7.6.0; 7.4.2; 7.4.2.1; 7.7.0; 7.4.2.2; 7.6.1; 7.4.2.3; 7.4.2.4—No fix listedCNA
CiscoCisco UTD SNORT IPS Engine Software3.17.1S; 16.12.3; 16.12.4; 17.3.1a; 16.6.6; 16.12.2; 3.17.0S; 16.6.5; 17.2.1r; 17.1.1; 16.6.7a; 16.6.1; 16.12.1a; 17.3.2; 17.4.1a; 16.12.5; 17.5.1; 16.6.9; 17.3.3; 17.5.1a; 17.3.4; 17.3.4a; 17.4.2; 17.4.1b; 17.6.1a; 16.6.10; 17.7.1a; 16.12.6; 17.6.2; 17.8.1a; 16.12.7; 17.3.5; 17.6.3; 17.6.3a; 17.7.2; 17.9.1a; 17.6.4; 17.3.6; 16.12.8; 17.3.7; 17.9.2a; 17.6.5; 17.11.1a; 17.12.1a; 17.6.6; 17.3.8; 17.3.8a; 17.6.6a; 17.12.2; 17.12.3; 17.6.7; 17.12.3a; 17.12.4; 17.6.8; 17.6.8a; 17.12.4a; 17.15.2c; 17.12.4b; 17.15.2a; 17.12.5; 17.15.3a; 17.15.3; 17.12.5b; 17.15.4—No fix listedCNA
  • Cisco Cyber Vision VendorCisco Affected 3.0.0; 3.0.2; 3.0.3; 3.0.1; 3.1.0; 3.0.4; 3.1.1; 3.1.2; 3.2.0; 3.0.5; 3.2.1; 3.0.6; 3.2.2; 3.2.3; 3.2.4; 4.0.0; 4.0.1; 4.0.2; 4.0.3; 4.1.0; 4.1.1; 4.1.2; 4.1.3; 4.1.4; 4.2.0; 4.2.1; 4.1.5; 4.2.2; 4.2.X; 4.2.3; 4.2.4; 4.2.6; 4.1.6; 4.3.0; 4.3.1; 4.3.2; 4.3.3; 4.4.0; 4.4.1; 4.4.2; 4.4.3; 4.1.7; 5.0.0; 5.0.1; 5.0.2; 5.1.0; 5.1.1; 5.1.2; 5.1.3; 5.2.0; 5.2.1 Fixed in — No fix listed CNA
  • Cisco Secure Firewall Threat Defense (FTD) Software VendorCisco Affected 7.4.1; 7.4.1.1; 7.6.0; 7.4.2; 7.4.2.1; 7.7.0; 7.4.2.2; 7.6.1; 7.4.2.3; 7.4.2.4 Fixed in — No fix listed CNA
  • Cisco UTD SNORT IPS Engine Software VendorCisco Affected 3.17.1S; 16.12.3; 16.12.4; 17.3.1a; 16.6.6; 16.12.2; 3.17.0S; 16.6.5; 17.2.1r; 17.1.1; 16.6.7a; 16.6.1; 16.12.1a; 17.3.2; 17.4.1a; 16.12.5; 17.5.1; 16.6.9; 17.3.3; 17.5.1a; 17.3.4; 17.3.4a; 17.4.2; 17.4.1b; 17.6.1a; 16.6.10; 17.7.1a; 16.12.6; 17.6.2; 17.8.1a; 16.12.7; 17.3.5; 17.6.3; 17.6.3a; 17.7.2; 17.9.1a; 17.6.4; 17.3.6; 16.12.8; 17.3.7; 17.9.2a; 17.6.5; 17.11.1a; 17.12.1a; 17.6.6; 17.3.8; 17.3.8a; 17.6.6a; 17.12.2; 17.12.3; 17.6.7; 17.12.3a; 17.12.4; 17.6.8; 17.6.8a; 17.12.4a; 17.15.2c; 17.12.4b; 17.15.2a; 17.12.5; 17.15.3a; 17.15.3; 17.12.5b; 17.15.4 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:cisco:snort:*:*:*:*:*:*:*:*3.0.0-233 to before 3.9.3.0VulnerableCisco
  • cpe:2.3:a:cisco:snort:*:*:*:*:*:*:*:* Versions 3.0.0-233 to before 3.9.3.0 Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-20359
  2. 2026-10-03 Alias added: GHSA-wcv6-8jqc-wfcx

References

Advisory 1

  • TI-2021-17311 Multiple Cisco Products Snort Rule Denial of Service Vulnerability CVSS 3.1HIGH 8.6
  • TI-2024-13276 Cisco Firepower Threat Defense Software Rate Filter Bypass Vulnerability CVSS 3.1HIGH 8.6
  • TI-2026-16281 Multiple Cisco Products Snort 3 TBD Denial of Service Vulnerability CVSS 3.1MEDIUM 5.8
  • TI-2026-16280 Multiple Cisco Products Snort 3 TBD Denial of Service Vulnerability CVSS 3.1MEDIUM 5.8
  • TI-2026-16271 Cisco Secure Firewall Threat Defense Software Snort 3 Visual Basic for Application Denial of Service Vulnerability CVSS 3.1MEDIUM 5.8
  • TI-2026-16268 Infinite loop in Cisco Cyber Vision CVSS 3.1MEDIUM 5.8
See all 12 →

Sources

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