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01 Record

CVE-2026-20133

A vulnerability in Cisco Catalyst SD-WAN Software could allow an unauthenticated, remote attacker to view sensitive information on an affected system. This vulnerability is due to insufficient file

MediumKEVPUBLISHEDCNA: cisco
CNA base score6.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

02 Description

A vulnerability in Cisco Catalyst SD-WAN Software could allow an unauthenticated, remote attacker to view sensitive information on an affected system. This vulnerability is due to insufficient file

03 Exploitation and scoring

Exploitation
Exploited in the wild. Listed in the CISA Known Exploited Vulnerabilities catalog on 2026-04-20. Federal remediation due 2026-04-23.
SSVC decision
  • ExploitationactiveCISA reports credible evidence of active 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
31.47% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 98.2% of scored records. A rank, not a probability.
NVD base score
7.5 (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:U/C:H/I:N/A:N
NVD analysis status
Analyzed. 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
2026-02-25 16:13Z8 MO AGO
Last updated
2026-04-22 15:31Z6 MO AGO
Reserved
2025-10-08
Assigning CNA
cisco
Record state
PUBLISHED
Severity
Medium (CVSS 6.5)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weaknesses
  • CWE-200Exposure of Sensitive Information to an Unauthorized ActorClass
Data version
5.2
Document digest
0502ae1a2fe5192d9a420918ce620fa3ef237bf256f4f1c38817d8e573a4a1bf

05 Affected products

VendorProductVersionsPlatforms
CiscoCisco Catalyst SD-WAN Manager17.2.6, 17.2.7, 17.2.8, 17.2.9, 17.2.10, 17.2.4, 17.2.5, 18.3.1.1, 18.3.3.1, 18.3.3, 18.3.4, 18.3.5, 18.3.7, 18.3.8, 18.3.6.1, 18.3.1, 18.3.0, 18.4.0.1, 18.4.3, 18.4.302, 18.4.303, 18.4.4, 18.4.5, 18.4.0, 18.4.1, 18.4.6, 19.2.0, 19.2.097, 19.2.099, 19.2.1, 19.2.2, 19.2.3, 19.2.31, 19.2.929, 19.2.4, 20.1.1.1, 20.1.12, 20.1.1, 20.1.2, 20.1.3, 19.3.0, 19.1.0, 18.2.0, 20.3.1, 20.3.2, 20.3.2.1, 20.3.3, 20.3.3.1, 20.3.4, 20.3.4.1, 20.3.4.2, 20.3.5, 20.3.6, 20.3.7, 20.3.7.1, 20.3.4.3, 20.3.5.1, 20.3.7.2, 20.3.8, 20.4.1, 20.4.1.1, 20.4.1.2, 20.4.2, 20.4.2.2, 20.4.2.1, 20.4.2.3, 20.5.1, 20.5.1.2, 20.5.1.1, 20.6.1, 20.6.1.1, 20.6.2.1, 20.6.2.2, 20.6.2, 20.6.3, 20.6.3.1, 20.6.4, 20.6.5, 20.6.5.1, 20.6.5.3, 20.6.1.2, 20.6.3.2, 20.6.4.1, 20.6.5.2, 20.6.5.4, 20.6.3.3, 20.6.4.2, 20.6.3.0.45, 20.6.3.0.46, 20.6.3.0.47, 20.6.3.4, 20.6.4.0.21, 20.6.5.1.10, 20.6.5.1.11, 20.6.5.1.7, 20.6.5.1.9, 20.6.5.2.4, 20.6.5.5, 20.6.5.2.8, 20.6.5.1.13, 20.6.6, 20.6.7, 20.6.8, 20.7.1, 20.7.1.1, 20.7.2, 20.8.1, 20.9.1, 20.9.2, 20.9.2.1, 20.9.3, 20.9.3.1, 20.9.2.3, 20.9.3.0.12, 20.9.3.0.16, 20.9.3.0.17, 20.9.3.0.18, 20.9.3.0.20, 20.9.3.0.21, 20.9.3.2, 20.9.3.2_LI_Images, 20.9.4, 20.9.4_LI_Images, 20.9.3.0.23, 20.9.4.1, 20.9.5, 20.9.5.1, 20.9.5.2, 20.9.6, 20.9.5.3, 20.9.7, 20.9.7.1, 20.9.8, 20.10.1, 20.10.1.1, 20.10.1.2, 20.11.1, 20.11.1.1, 20.11.1.2, 20.12.1, 20.12.1_LI_Images, 20.12.2, 20.12.3, 20.12.3.1, 20.12.4, 20.12.4.1, 20.12.5, 20.12.5.1, 20.12.5.2, 20.12.6, 20.13.1, 20.14.1, 20.15.1, 20.15.2, 20.15.3, 20.15.3.1, 20.15.4, 20.15.4.1, 20.16.1, 20.18.1, 20.18.2—

06 References