How severe is CVE-2018-11712?

CVE-2018-11712 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 high, integrity none, and availability none.

Is CVE-2018-11712 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-11712?

CVE-2018-11712 primarily affects Webkitgtk Webkitgtk+. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-11712?

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-2018-11712 published?

CVE-2018-11712 was published on 2018-06-04 and last updated on 2026-06-17.

CVE-2018-11712

CVE-2018-11712 is a high-severity vulnerability in Webkitgtk Webkitgtk+ with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-295.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (64th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-295
Affected product: Webkitgtk Webkitgtk+
Published: 2018-06-04
Last modified: 2026-06-17

Description

WebCore/platform/network/soup/SocketStreamHandleImplSoup.cpp in the libsoup network backend of WebKit, as used in WebKitGTK+ versions 2.20.0 and 2.20.1, failed to perform TLS certificate verification for WebSocket connections.

Frequently asked questions

What is CVE-2018-11712?: WebCore/platform/network/soup/SocketStreamHandleImplSoup.cpp in the libsoup network backend of WebKit, as used in WebKitGTK+ versions 2.20.0 and 2.20.1, failed to perform TLS certificate verification for WebSocket connections.
How severe is CVE-2018-11712?: CVE-2018-11712 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 high, integrity none, and availability none.
Is CVE-2018-11712 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-11712?: CVE-2018-11712 primarily affects Webkitgtk Webkitgtk+. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-11712?: 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-2018-11712 published?: CVE-2018-11712 was published on 2018-06-04 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:webkitgtk:webkitgtk\+:2.20.0:*:*:*:*:*:*:*
cpe:2.3:a:webkitgtk:webkitgtk\+:2.20.1:*:*:*:*:*:*:*

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