Is CVE-2019-8771 in the CISA KEV catalog?

No. CVE-2019-8771 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2019-8771?

CVE-2019-8771 has a CVSS v3 base score of 6.1 (MEDIUM).

What is the EPSS score for CVE-2019-8771?

CVE-2019-8771 has an EPSS score of 0.99% (58th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2019-8771?

Upgrade webkit2gtk on debian 11 to 2.26.0-1 or later. Fixes are available for 5 affected products.

CVE & CISA-KEV Catalog

CVE-2019-8771

MEDIUM

6.1

CVSS v3

NVD

Description

This issue was addressed with improved iframe sandbox enforcement. This issue is fixed in Safari 13.0.1, iOS 13. Maliciously crafted web content may violate iframe sandboxing policy.

CWE-1021

How to fix

Remediation Available

webkit2gtkDebian

Fixed in:2.26.0-1CVE-2019-8771

libjavascriptcoregtk-4.0-18Ubuntu

Fixed in:2.26.1-0ubuntu0.18.04.1USN-4178-1

libwebkit2gtk-4.0-37Ubuntu

Fixed in:2.26.1-0ubuntu0.18.04.1USN-4178-1

webkit2gtkUbuntu

Fixed in:2.26.1-0ubuntu0.18.04.1USN-4178-1

SafariWindows application

Affected:13.0.1Fixed in:13.0.1Apple Inc.

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeChanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Exploit Intelligence

0.99%probability of exploitation in 30 days

58thpercentile

Moderate risk: more likely to be exploited than 58% of all known CVEs.

References

Vendor Advisory2

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.