CVE-2018-11646
webkitFaviconDatabaseSetIconForPageURL and webkitFaviconDatabaseSetIconURLForPageURL in UIProcess/API/glib/WebKitFaviconDatabase.cpp in WebKit, as used in WebKitGTK+ through 2.21.3, mishandle an unset pageURL, leading to an application crash.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 68.0%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
Description
webkitFaviconDatabaseSetIconForPageURL and webkitFaviconDatabaseSetIconURLForPageURL in UIProcess/API/glib/WebKitFaviconDatabase.cpp in WebKit, as used in WebKitGTK+ through 2.21.3, mishandle an unset pageURL, leading to an application crash.
- CVSS 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 68.02% probability · 99th percentile
- Public exploits
- 2 in Exploit-DB · first 5 June 2018
- CISA KEV
- Not listed
- Affected
- webkitgtk/webkitgtk\+
- Source
- cve@mitre.org
EPSS moved from 64.0% on 21 September 2026 to 68.0% on 27 October 2026, peaking at 68.6% on 22 September 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
Public exploits (2)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- https://bugs.webkit.org/show_bug.cgi?id=186164Issue Tracking, Patch, Vendor Advisory
- https://bugzilla.gnome.org/show_bug.cgi?id=795740Exploit, Issue Tracking, Third Party Advisory
- https://security.gentoo.org/glsa/201808-04Third Party Advisory
- https://www.exploit-db.com/exploits/44842/Exploit, Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/44876/Exploit, Third Party Advisory, VDB Entry
- https://bugs.webkit.org/show_bug.cgi?id=186164Issue Tracking, Patch, Vendor Advisory
- https://bugzilla.gnome.org/show_bug.cgi?id=795740Exploit, Issue Tracking, Third Party Advisory
- https://security.gentoo.org/glsa/201808-04Third Party Advisory
- https://www.exploit-db.com/exploits/44842/Exploit, Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/44876/Exploit, Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.