CVE-2018-21008

Published Sep 4, 2019 · Updated Nov 3, 2026

Severity · CVSSUNKNOWN · Not scored

Known exploitationNot listed

EPSS / likelihood0.59%

QFinch risk scoreNot available

Original summary

Normalized public record · Updated Nov 3, 2026

An issue was discovered in the Linux kernel before 4.16.7. A use-after-free can be caused by the function rsi_mac80211_detach in the file drivers/net/wireless/rsi/rsi_91x_mac80211.c.

Publisher and source text is retained separately from QFinch interpretation.

QFinch assessment

An issue was discovered in the Linux kernel before 4.16.7. A use-after-free can be caused by the function rsi_mac80211_detach in the file drivers/net/wireless/rsi/rsi_91x_mac80211.c.

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 ↗
cdn.kernel.org ↗
openSUSE-SU-2019:2173 ↗
openSUSE-SU-2019:2181 ↗
[debian-lts-announce] 20190925 [SECURITY] [DLA 1930-1] linux security update ↗
security.netapp.com ↗
USN-4162-1 ↗
USN-4163-1 ↗
USN-4163-2 ↗
USN-4162-2 ↗
packetstormsecurity.com ↗
[debian-lts-announce] 20200302 [SECURITY] [DLA 2114-1] linux-4.9 security update ↗

Record history

Published Sep 4, 2019 · Last refreshed Nov 3, 2026

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

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