How severe is CVE-2018-11646?

CVE-2018-11646 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2018-11646 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 69% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-11646?

CVE-2018-11646 affects Webkitgtk Webkitgtk+. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-11646?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-11646 published?

CVE-2018-11646 was published on 2018-06-01 and last updated on 2026-06-17.

CVE-2018-11646

CVE-2018-11646 is a high-severity vulnerability in Webkitgtk Webkitgtk+ with a CVSS 3.x base score of 7.5. Its EPSS exploit-prediction score of 69% places it in the 99th percentile, indicating an elevated likelihood of exploitation.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 69% (99th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Webkitgtk Webkitgtk+
Published: 2018-06-01
Last modified: 2026-06-17

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.

Frequently asked questions

What is 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.
How severe is CVE-2018-11646?: CVE-2018-11646 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2018-11646 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 69% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-11646?: CVE-2018-11646 affects Webkitgtk Webkitgtk+. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-11646?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-11646 published?: CVE-2018-11646 was published on 2018-06-01 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:webkitgtk:webkitgtk\+:*:*:*:*:*:*:*:*

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