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Fencer Intel
high 8.8

CVE-2018-12294 json

WebCore/platform/graphics/texmap/TextureMapperLayer.cpp in WebKit, as used in WebKitGTK+ prior to version 2.20.2, is vulnerable to a use af…

published 8y ago modified 4mo ago also EUVD-2018-4268

cvss
8.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.3%
EPSS 2.3% chance of exploitation in 30 days, percentile 83%
public exploits
0
none known

Summary

WebCore/platform/graphics/texmap/TextureMapperLayer.cpp in WebKit, as used in WebKitGTK+ prior to version 2.20.2, is vulnerable to a use after free for a WebCore::TextureMapperLayer object.

Patch / fix

  • webkit webkitgtk+ 2.20.2
  • webkit2gtk Debian 14, Debian 13, Debian 12 2.20.2-1

debian advisories DEBIAN-CVE-2018-12294

  • webkit2gtk Ubuntu 16.04 LTS 2.20.2-0ubuntu0.16.04.1
  • webkit2gtk Ubuntu 18.04 LTS 2.20.2-0ubuntu0.18.04.1

ubuntu advisories UBUNTU-CVE-2018-12294

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

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Exploit prediction

2.33% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 8.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.