What is CVE-2020-10942?

CVE-2020-10942 is a medium-severity vulnerability in Linux Kernel, classified under Out-of-bounds Write. CVSS score: 5.3/10. Published 2020-03-24.

How severe is CVE-2020-10942?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Is CVE-2020-10942 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Linux Kernel

CVE-2020-10942

In the Linux kernel before 5.5.8, get_raw_socket in drivers/vhost/net.c lacks validation of an sk_family field, which might allow attackers to trigger kernel stack corruption via crafted system calls.

Vulnerability class: Buffer Overflow

Published 2020-03-24 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H.

EPSS exploit prediction

EPSS: 0.010 (61.3th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 61st percentile — 61.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: +0.000

Affected products

Linux Kernel
Canonical Ubuntu Linux — versions 14.04, 16.04, 18.04
Debian Linux — versions 8.0, 9.0, 10.0
openSUSE Leap — versions 15.1

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

Public proof-of-concept exploits

ARPSyndicate/cvemon

References

git.kernel.org/linus/42d84c8490f9f0931786f1623191fcab397c3d64 (Patch, Third Party Advisory)
lkml.org/lkml/2020/2/15/125 (Exploit, Patch, Vendor Advisory)
cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.5.8 (Release Notes, Vendor Advisory)
security.netapp.com/advisory/ntap-20200403-0003/ (Third Party Advisory)
www.openwall.com/lists/oss-security/2020/04/15/4 (mailing-list, Mailing List, Third Party Advisory)
lists.opensuse.org/opensuse-security-announce/2020-04/msg00035.html (vendor-advisory, Mailing List, Third Party Advisory)
www.debian.org/security/2020/dsa-4667 (vendor-advisory, Third Party Advisory)
usn.ubuntu.com/4344-1/ (vendor-advisory, Third Party Advisory)
usn.ubuntu.com/4345-1/ (vendor-advisory, Third Party Advisory)
usn.ubuntu.com/4342-1/ (vendor-advisory, Third Party Advisory)

Frequently asked questions

What is CVE-2020-10942?: CVE-2020-10942 is a medium-severity vulnerability in Linux Kernel, classified under Out-of-bounds Write. CVSS score: 5.3/10. Published 2020-03-24.
How severe is CVE-2020-10942?: Medium severity. CVSS v3 base score is 5.3 out of 10.
Is CVE-2020-10942 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.