Cyber Resilience

CVE-2021-30178

Medium

Published: 07 April 2021

Published
07 April 2021
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.0011 29.6th percentile
Risk Priority 11 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-30178 is a medium-severity NULL Pointer Dereference (CWE-476) vulnerability in Fedoraproject Fedora. Its CVSS base score is 5.5 (Medium).

Operationally, ranked at the 29.6th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

An issue was discovered in the Linux kernel through 5.11.11. synic_get in arch/x86/kvm/hyperv.c has a NULL pointer dereference for certain accesses to the SynIC Hyper-V context, aka CID-919f4ebc5987.

CWE(s)
CWE-476

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

linux
linux kernel
≤ 5.11.11
fedoraproject
fedora
32, 33, 34

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References