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01 Record

CVE-2021-39168

TimelockController vulnerability in OpenZeppelin Contracts

CriticalPUBLISHEDCNA: GitHub_M
CNA base score10.0 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

02 Description

TimelockController vulnerability in OpenZeppelin Contracts

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
1.59% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 75.1% of scored records. A rank, not a probability.
NVD base score
9.8 (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: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
2021-08-26 23:35Z5 YR AGO
Last updated
2024-08-04 01:58Z2 YR AGO
Reserved
2021-08-16
Assigning CNA
GitHub_M
Record state
PUBLISHED
Severity
Critical (CVSS 10.0)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Weaknesses
  • CWE-269Improper Privilege ManagementClass
Data version
5.1
Document digest
b44e01f998eeb3f25aac77fc474d3335471950ca7d17e0324c480cbfdf1e34f3

05 Affected products

VendorProductVersionsPlatforms
OpenZeppelinopenzeppelin-contracts-upgradeable>=4.0.0, < 4.3.1, >=3.3.0, < 3.4.2, >= 3.3.0-solc-0.7, < 3.4.2-solc-0.7—

06 References