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01 Record

CVE-2021-26253

Bypass of Splunk Enterprise's implementation of DUO MFA

HighPUBLISHEDCNA: Splunk
CNA base score8.1 CVSS v3.xCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

02 Description

Bypass of Splunk Enterprise's implementation of DUO MFA

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
0.81% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 56.9% of scored records. A rank, not a probability.
NVD base score
8.1 (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:U/C:H/I:H/A:H
NVD analysis status
Modified. 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
2022-05-06 16:34Z4 YR AGO
Last updated
2024-08-03 20:19Z2 YR AGO
Reserved
2021-11-03
Assigning CNA
Splunk
Record state
PUBLISHED
Severity
High (CVSS 8.1)
CNA CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
  • CWE-287Improper AuthenticationClass
Data version
5.1
Document digest
a82f79546556660e24bfdfd195be1c820da4301105ecd1f2269434258e6cc85b

05 Affected products

VendorProductVersionsPlatforms
SplunkSplunk EnterpriseVersion(s) before 8.1.6—

06 References