CVE-2021-4203Not scoredCWE-362

CVE-2021-4203: Linux kernel vulnerability

Linux · kernel

Affected: Linux kernel · Exploitation: possible (1 to 10%)

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

1.8%probability of exploitation in the next 30 days

78th percentile

050100

Higher than 78% of scored CVEs

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

DescriptionCVE.org

A use-after-free read flaw was found in sock_getsockopt() in net/core/sock.c due to SO_PEERCRED and SO_PEERGROUPS race with listen() (and connect()) in the Linux kernel. In this flaw, an attacker with a user privileges may crash the system or leak internal kernel information.

Affected products1

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

kernelkernel 5.15 rc4

On the Atlas

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

Open the Atlas

Exploitation: Possible (1 to 10%). EPSS between 1% and 10%.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: Race Condition · Race Conditions
Vendor: Linux
Published: March 2022
Band: Possible (1 to 10%), March 2022

CoverageNo articles yet

No CyberSIXT article names CVE-2021-4203 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.