HOMEVULNERABILITIESCVE-2018-11646
HIGHPOC

CVE-2018-11646

NVD-CWE-noinfoPublished: June 1, 2018· Updated: Jun 17, 2026

7.5
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2018-11646 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.

A proof-of-concept (PoC) exploit exists for CVE-2018-11646. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Vendors & Products

webkitgtk1 product(s)
webkitgtk\+
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

POC AVAILABLEProof-of-concept code exists
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://bugs.webkit.org/show_bug.cgi?id=186164
PATCHhttps://bugs.webkit.org/show_bug.cgi?id=186164
ADVISORYhttps://bugzilla.gnome.org/show_bug.cgi?id=795740
ADVISORYhttps://security.gentoo.org/glsa/201808-04
ADVISORYhttps://www.exploit-db.com/exploits/44842/
ADVISORYhttps://www.exploit-db.com/exploits/44876/
ADVISORYhttps://bugzilla.gnome.org/show_bug.cgi?id=795740
ADVISORYhttps://security.gentoo.org/glsa/201808-04
ADVISORYhttps://www.exploit-db.com/exploits/44842/
ADVISORYhttps://www.exploit-db.com/exploits/44876/

All References (10)

→
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

Quick Facts

CVE IDCVE-2018-11646
CVSS Score7.5 / 10
SeverityHIGH
WeaknessNVD-CWE-noinfo
CISA KEVNo
ExploitPOC
Affected1 vendor(s)
PublishedJun 1, 2018

Related CVEs (NVD-CWE-noinfo)

CVE-2009-1314
10.0
CVE-2005-2222
10.0
CVE-2012-5692
10.0
CVE-2008-6158
10.0
CVE-2008-4619
10.0
CVE-2009-1178
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2018-11646 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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