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01 Record

CVE-2026-20056

Cisco Secure Web Appliance TBD Bypass Vulnerability

MediumPUBLISHEDCNA: cisco
CNA base score4.0 CVSS v3.xCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N
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02 Description

Cisco Secure Web Appliance TBD Bypass Vulnerability

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.16% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 4.9% of scored records. A rank, not a probability.
NVD base score
4.0 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N
NVD analysis status
Deferred. NVD last modified this record on 2026-06-17.
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
2026-02-04 16:11Z8 MO AGO
Last updated
2026-02-04 16:40Z8 MO AGO
Reserved
2025-10-08
Assigning CNA
cisco
Record state
PUBLISHED
Severity
Medium (CVSS 4.0)
CNA CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N
Weaknesses
  • CWE-494Download of Code Without Integrity CheckBase
Data version
5.2
Document digest
937925dc8a90f9c4732a0e0a451d278102c1f14e4b1654f2593ce2eb5b69d4e8

05 Affected products

VendorProductVersionsPlatforms
CiscoCisco Secure Web Appliance11.8.0-453, 12.5.3-002, 12.0.3-007, 12.0.3-005, 14.1.0-032, 14.1.0-047, 14.1.0-041, 12.0.4-002, 14.0.2-012, 11.8.0-414, 12.0.1-268, 11.8.1-023, 11.8.3-021, 11.8.3-018, 12.5.1-011, 11.8.4-004, 12.5.2-007, 12.5.2-011, 14.5.0-498, 12.5.4-005, 12.5.4-011, 12.0.5-011, 14.0.3-014, 12.5.5-004, 12.5.5-005, 12.5.5-008, 14.0.4-005, 14.5.1-008, 14.5.1-016, 15.0.0-355, 15.0.0-322, 12.5.6-008, 15.1.0-287, 14.5.2-011, 15.2.0-116, 14.0.5-007, 15.2.0-164, 14.5.1-510, 12.0.2-012, 12.0.2-004, 14.5.1-607, 14.5.3-033, 15.0.1-004, 15.2.1-011, 14.5.0-673, 14.5.0-537, 12.0.1-334, 14.0.1-503, 14.0.1-053, 11.8.0-429, 14.0.1-040, 14.0.1-014, 12.5.1-043, 15.2.2-009, 15.5.0-566, 15.2.3-007, 15.5.0-574, 15.5.0-710, 15.2.4-022, 15.5.1-002—

06 References