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CVE-2021-3483

A flaw was found in the Nosy driver in the Linux kernel. This issue allows a device to be inserted twice into a doubly-linked list,…

High7.8EPSS 0.36%
Published
Updated
Reserved
Assigned by
redhat

Description

A flaw was found in the Nosy driver in the Linux kernel. This issue allows a device to be inserted twice into a doubly-linked list, leading to a use-after-free when one of these devices is removed. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. Versions before kernel 5.12-rc6 are affected

Scores

CVSS scores of CVE-2021-3483, by who scored it
Scored byCVSSScoreVector
NVDNVD · Modified3.1High7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS (exploitation in 30 days)
0.36% · top 70% of all CVEs (7 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.

Weakness

Affected products

  • Linux · kernel

    • affected < 4.4.265
    • affected 4.5 – < 4.9.265
    • affected 4.10 – < 4.14.229
    • affected 4.15 – < 4.19.185
    • affected 4.20 – < 5.4.110
    • affected 5.5 – < 5.10.28
    • affected 5.11 – < 5.11.12

References (5)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .