CISA KEV · Known exploitedHigh

CVE-2019-8720

WebKitGTK

A vulnerability was found in WebKit. The flaw is triggered when processing maliciously crafted web content that may lead to arbitrary code execution. Improved memory handling addresses the multiple memory corruption issues.

CVSS
8.8
EPSS
1.54%
72.5% percentile
CISA KEV
Listed
Published
2023.03.07
PRIORITY ASSESSMENT

Immediate review

CISA has listed this vulnerability in the Known Exploited Vulnerabilities catalog.

Known exploitationConfirmed by CISA KEV
Exploit probability1.54%
Technical severityCVSS 8.8

Vulnerability overview

A vulnerability was found in WebKit. The flaw is triggered when processing maliciously crafted web content that may lead to arbitrary code execution. Improved memory handling addresses the multiple memory corruption issues.

Affected product and versions

Product
WebKitGTK
Affected versions
Fixed in webkitgtk 2.26.0, < 2.26.0, 8.0, 8.4, 8.6, 7.0
Fixed versions
2.26.0

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
CISA required action

Apply updates per vendor instructions.

Due date: 2022.06.13
  1. 1
    Identify

    Confirm that WebKitGTK and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
CWE-119
KEV added
2022.05.23
Ransomware use
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