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01 Record

CVE-2021-1461

Cisco SD-WAN Software Signature Verification Bypass Vulnerability

MediumPUBLISHEDCNA: cisco
CNA base score4.9 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N/RL:X/RC:X/E:X
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02 Description

Cisco SD-WAN Software Signature Verification 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
0.40% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 34.8% of scored records. A rank, not a probability.
NVD base score
4.9 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/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
2024-11-18 15:33Z1 YR AGO
Last updated
2024-11-18 15:53Z1 YR AGO
Reserved
2020-11-13
Assigning CNA
cisco
Record state
PUBLISHED
Severity
Medium (CVSS 4.9)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N/RL:X/RC:X/E:X
Weaknesses
  • CWE-347Improper Verification of Cryptographic SignatureBase
Data version
5.1
Document digest
40512e88d6924e18e67b7369a63b1ef734008d1351a7b427b2990f7460d666a9

05 Affected products

VendorProductVersionsPlatforms
CiscoCisco Catalyst SD-WAN Manager19.2.1, 18.4.4, 19.3.0, 19.2.2, 19.2.099, 18.3.6, 18.3.7, 19.2.0, 18.3.8, 19.0.0, 19.1.0, 18.4.302, 18.4.303, 19.2.097, 19.2.098, 17.2.10, 18.3.6.1, 19.0.1a, 18.2.0, 18.4.3, 18.4.1, 17.2.8, 18.3.3.1, 18.4.0, 18.3.1, 17.2.6, 17.2.9, 18.3.4, 17.2.5, 18.3.1.1, 18.3.5, 18.4.0.1, 18.3.3, 17.2.7, 17.2.4, 18.3.0, 19.2.3, 19.2.929, 19.2.31, 19.2.32, 19.2.4—
CiscoCisco SD-WAN vEdge Router18.4.303, 18.3.7, 19.3.0, 18.2.0, 19.2.099, 17.2.10, 18.3.3, 18.3.6, 19.0.0, 17.2.6, 18.4.0, 19.1.01, 19.2.098, 18.3.1, 18.4.302, 19.2.2, 18.3.5, 17.2.9, 19.1.0, 19.2.097, 17.2.5, 17.2.8, 18.3.8, 18.3.0, 18.4.3, 18.4.4, 19.2.1, 17.2.4, 18.3.4, 19.0.1a, 17.2.7, 18.4.1, 19.2.0, 19.2.3, 19.2.929, 19.2.31, 19.2.32, 19.2.4—

06 References