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01 Record

CVE-2023-20071

Multiple Cisco products are affected by a vulnerability in the Snort detection engine that could allow an unauthenticated, remote attacker to bypass the configured policies on an affected system. This

MediumPUBLISHEDCNA: cisco
CNA base score5.8 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
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02 Description

Multiple Cisco products are affected by a vulnerability in the Snort detection engine that could allow an unauthenticated, remote attacker to bypass the configured policies on an affected system. This

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
0.52% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 44.1% of scored records. A rank, not a probability.
NVD base score
5.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
NVD analysis status
Modified. NVD last modified this record on 2026-08-11.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2023-11-01 17:07Z2 YR AGO
Last updated
2024-08-02 08:57Z2 YR AGO
Reserved
2022-10-27
Assigning CNA
cisco
Record state
PUBLISHED
Severity
Medium (CVSS 5.8)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
Weaknesses
  • CWE-1039Inadequate Detection or Handling of Adversarial Input Perturbations in Automated Recognition MechanismClass
Data version
5.1
Document digest
3e9ef5320e9bedb5d0d3f0cfc41badd177fec088e68d1322c116ad753a54776b

05 Affected products

VendorProductVersionsPlatforms
CiscoCisco Firepower Threat Defense Software6.2.3, 6.2.3.1, 6.2.3.2, 6.2.3.3, 6.2.3.4, 6.2.3.5, 6.2.3.6, 6.2.3.7, 6.2.3.8, 6.2.3.10, 6.2.3.11, 6.2.3.9, 6.2.3.12, 6.2.3.13, 6.2.3.14, 6.2.3.15, 6.2.3.16, 6.2.3.17, 6.2.3.18, 6.6.0, 6.6.0.1, 6.6.1, 6.6.3, 6.6.4, 6.6.5, 6.6.5.1, 6.6.5.2, 6.6.7, 6.6.7.1, 6.4.0, 6.4.0.1, 6.4.0.3, 6.4.0.2, 6.4.0.4, 6.4.0.5, 6.4.0.6, 6.4.0.7, 6.4.0.8, 6.4.0.9, 6.4.0.10, 6.4.0.11, 6.4.0.12, 6.4.0.13, 6.4.0.14, 6.4.0.15, 6.4.0.16, 6.7.0, 6.7.0.1, 6.7.0.2, 6.7.0.3, 7.0.0, 7.0.0.1, 7.0.1, 7.0.1.1, 7.0.2, 7.0.2.1, 7.0.3, 7.0.4, 7.0.5, 7.1.0, 7.1.0.1, 7.1.0.2, 7.1.0.3, 7.2.0, 7.2.0.1, 7.2.1, 7.2.2, 7.2.3, 7.3.0, 7.3.1, 7.3.1.1—
CiscoCisco Umbrella Insights Virtual ApplianceNot specified—
CiscoCisco Cyber Vision3.0.4, 3.0.0, 3.0.1, 3.0.2, 3.0.3, 3.0.5, 3.0.6, 3.1.0, 3.1.2, 3.1.1, 3.2.3, 3.2.1, 3.2.4, 3.2.0, 3.2.2, 4.0.0, 4.0.1, 4.0.2, 4.0.3, 4.1.0, 4.1.1, 4.1.2—
CiscoCisco UTD SNORT IPS Engine Software16.12.1a, 16.12.2, 16.12.3, 16.12.4, 16.12.5, 16.12.6, 16.12.7, 16.12.8, 16.6.1, 16.6.5, 16.6.6, 16.6.7a, 16.6.9, 16.6.10, 17.1.1, 17.2.1r, 17.3.1a, 17.3.2, 17.3.3, 17.3.4a, 17.3.6, 17.3.5, 17.3.7, 3.17.0S, 3.17.1S, 17.4.1a, 17.4.2, 17.4.1b, 17.5.1a, 17.6.1a, 17.6.2, 17.6.3a, 17.6.4, 17.6.5, 17.7.1a, 17.7.2, 17.10.1a, 17.9.1a, 17.9.2a, 17.9.3a, 17.8.1a, Fuji-16.9.2, Fuji-16.9.4, Fuji-16.9.6, Fuji-16.9.3, Fuji-16.9.7, Fuji-16.9.8, Fuji-16.9.5, Denali-16.3.3, Denali-16.3.9, Denali-16.3.7, Denali-16.3.5, Denali-16.3.4, Everest-16.6.3, Everest-16.6.4, Everest-16.6.2—

06 References