CVE-2020-10018

Name: CVE-2020-10018
Creator: NVD / NIST
Published: 2020-03-02T23:15:11.557+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 5.03%

Last modified Jun 17, 2026

CVE-2020-10018 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. WebKitGTK through 2.26.4 and WPE WebKit through 2.26.4 (which are the versions right before 2.28.0) contains a memory corruption issue (use-after-free) that may lead to arbitrary code execution. This issue has been fixed in 2.28.0 with improved memory handling.. EPSS estimates a 5.03% chance of exploitation in the next 30 days.

Description

WebKitGTK through 2.26.4 and WPE WebKit through 2.26.4 (which are the versions right before 2.28.0) contains a memory corruption issue (use-after-free) that may lead to arbitrary code execution. This issue has been fixed in 2.28.0 with improved memory handling.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

5.03%

91.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-416

Affected Software

Vendor	Product	Versions
Webkitgtk	Webkitgtk	< 2.28.0
Wpewebkit	Wpe Webkit	< 2.28.0
Fedoraproject	Fedora	30
Fedoraproject	Fedora	31
Debian	Debian Linux	10.0
Canonical	Ubuntu Linux	18.04
Canonical	Ubuntu Linux	19.10
Opensuse	Leap	15.1

References

http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00008.htmlMailing List, Third Party Advisory
https://bugs.webkit.org/show_bug.cgi?id=204342#c21Permissions Required, Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DOR5LPL4UASVAR76EIHCL4O2KGDWGC6K/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GLERWAS2LL7SX2GHA2DDZ2PL3QC5OHIF/
https://security.gentoo.org/glsa/202006-08Third Party Advisory
https://usn.ubuntu.com/4310-1/Third Party Advisory
https://webkitgtk.org/security/WSA-2020-0003.htmlVendor Advisory
https://wpewebkit.org/security/WSA-2020-0003.htmlVendor Advisory
https://www.debian.org/security/2020/dsa-4641Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00008.htmlMailing List, Third Party Advisory
https://bugs.webkit.org/show_bug.cgi?id=204342#c21Permissions Required, Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DOR5LPL4UASVAR76EIHCL4O2KGDWGC6K/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GLERWAS2LL7SX2GHA2DDZ2PL3QC5OHIF/
https://security.gentoo.org/glsa/202006-08Third Party Advisory
https://usn.ubuntu.com/4310-1/Third Party Advisory
https://webkitgtk.org/security/WSA-2020-0003.htmlVendor Advisory
https://wpewebkit.org/security/WSA-2020-0003.htmlVendor Advisory
https://www.debian.org/security/2020/dsa-4641Third Party Advisory

Timeline

Published: Mar 2, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-10018?

How severe is CVE-2020-10018?

CVE-2020-10018 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 5.03% probability of exploitation in the next 30 days.

How do I fix CVE-2020-10018?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-10018?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST