Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2026-53282

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: x86/kexec: Push kjump return address even for non-kjump kexec The version of purgatory code shipped by kexec-tools attempts to…

Published Jun 26, 2026EPSS 0.16%

Overview

CVE-2026-53282 is a medium-severity vulnerability. It was published on June 26, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

x86/kexec: Push kjump return address even for non-kjump kexec

The version of purgatory code shipped by kexec-tools attempts to look above

the top of its stack to find a return address for a kjump, even in a non-kjump

kexec.

After the commit in Fixes: the word above the stack might not be there,

leading to a fault (which is at least now caught by my exception-handling code

in kexec).

That commit fixed things for the actual kjump path, but no longer

"gratuitously" pushes the unused return address to the stack in the non-kjump

path. Put that *back* in the non-kjump path, to prevent purgatory from

crashing when trying to access it.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/786a45757dcdf8f2beb9d4a6db605db16c18b2b4Refgit.kernel.org/stable/c/7dba9631faa2ee0785e8c2bf0e3d90a05f26dd8cRefgit.kernel.org/stable/c/b0bd7a850e1f082560959707dbf57b0402071646

How CyberStrike helps

Frequently asked questions

What is CVE-2026-53282?

CVE-2026-53282 is a medium-severity vulnerability. It was published on June 26, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2026-53282?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-53282?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-53282?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-53282 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

Related MEDIUM CVEs from 2026

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999