CVE-2020-25284

Published Sep 13, 2020 · Updated Nov 3, 2026

Severity · CVSSUNKNOWN · Not scored

Known exploitationNot listed

EPSS / likelihood0.31%

QFinch risk scoreNot available

Original summary

Normalized public record · Updated Nov 3, 2026

The rbd block device driver in drivers/block/rbd.c in the Linux kernel through 5.8.9 used incomplete permission checking for access to rbd devices, which could be leveraged by local attackers to map or unmap rbd block devices, aka CID-f44d04e696fe.

Publisher and source text is retained separately from QFinch interpretation.

QFinch assessment

The rbd block device driver in drivers/block/rbd.c in the Linux kernel through 5.8.9 used incomplete permission checking for access to rbd devices, which could be leveraged by local attackers to map or unmap rbd block devices, aka CID-f44d04e696fe.

Evidence: public source records

Affected products

Affected scope reported by the available public evidence
Affected package, product or range	Fix status
Consult the referenced vendor advisory for affected versions.	Consult source advisory

Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.

Remediation

Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.

Confirm the affected product and reachable code path exist in your environment.
Apply the vendor-supported patch or mitigation from the primary advisory.
Rescan the exact deployed revision and retain verification evidence.

Review primary references

Evidence coverage

FIRST-EPSSCVE-LIST-V5

SSVC priority: LOW
Confidence: Not available
Aliases: None reported

Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.

Sources and record history

Patch commit ↗
twitter.com ↗
[debian-lts-announce] 20200928 [SECURITY] [DLA 2385-1] linux-4.19 security update ↗
openSUSE-SU-2020:1586 ↗
openSUSE-SU-2020:1655 ↗
[debian-lts-announce] 20201030 [SECURITY] [DLA 2420-1] linux security update ↗
[debian-lts-announce] 20201031 [SECURITY] [DLA 2420-2] linux regression update ↗

Record history

Published Sep 13, 2020 · Last refreshed Nov 3, 2026

Original summary QFinch assessment Affected products Remediation Evidence coverage Sources and history

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