CVE-2021-4159Not scoredCWE-202

CVE-2021-4159: Linux kernel vulnerability

Linux · kernel

Affected: Linux kernel · Exploitation: unlikely (under 1%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

0.3%probability of exploitation in the next 30 days

16th percentile

050100

Higher than 16% of scored CVEs

Not scored yet. The CVE record carries no CVSS score.

DescriptionCVE.org

A vulnerability was found in the Linux kernel's EBPF verifier when handling internal data structures. Internal memory locations could be returned to userspace. A local attacker with the permissions to insert eBPF code to the kernel can use this to leak internal kernel memory details defeating some of the exploit mitigations in place for the kernel.

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

kernelFixed in v5.7-rc1

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas

Exploitation: Unlikely (under 1%). EPSS under 1%, or no score yet.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: Exposure of Sensitive Information Through Data Queries · Information Disclosure
Vendor: Linux
Published: August 2022
Band: Unlikely (under 1%), August 2022

CoverageNo articles yet

No CyberSIXT article names CVE-2021-4159 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.