CVE-2020-10018
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.99%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 4.99% probability · 92th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- webkitgtk/webkitgtk · wpewebkit/wpe webkit · fedoraproject/fedora · debian/debian linux · canonical/ubuntu linux · opensuse/leap
- Source
- cve@mitre.org
EPSS 5.0% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.