What is CVE-2020-10720?

CVE-2020-10720 is a medium-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 5.5/10. Published 2020-09-03.

How severe is CVE-2020-10720?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Is CVE-2020-10720 known to be exploited?

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

Use After Free in Linux Kernel

CVE-2020-10720

A flaw was found in the Linux kernel's implementation of GRO in versions before 5.2. This flaw allows an attacker with local access to crash the system.

Vulnerability class: Use-After-Free

Published 2020-09-03 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.003 (24.7th percentile), scored 2026-10-05.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 25th percentile — 24.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000

Affected products

Linux Kernel
Kernel — versions Kernel versions before 5.2

Weakness classification (CWE)

CWE-416 — Use After Free

Public proof-of-concept exploits

404notf0und/CVE-Flow

References

bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/ (Patch, Mailing List, Vendor Advisory)

Frequently asked questions

What is CVE-2020-10720?: CVE-2020-10720 is a medium-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 5.5/10. Published 2020-09-03.
How severe is CVE-2020-10720?: Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2020-10720 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.