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CVE-2019-8720 WebKitGTK CVE debrief

CVE-2019-8720 is a WebKitGTK memory corruption vulnerability that CISA has listed in its Known Exploited Vulnerabilities catalog. The supplied KEV record indicates remediation should follow vendor instructions, with CISA’s due date set for 2022-06-13 after the 2022-05-23 listing.

Vendor
WebKitGTK
Product
WebKitGTK
CVSS
Unknown
CISA KEV
Listed
Original CVE published
2022-05-23
Original CVE updated
2022-05-23
Advisory published
2022-05-23
Advisory updated
2022-05-23

Who should care

Security teams, system administrators, and application owners responsible for systems that use WebKitGTK should prioritize this issue, especially if they track CISA KEV items for remediation.

Technical summary

The available source material identifies the issue as a memory corruption vulnerability in WebKitGTK. The corpus does not provide further technical details about the affected code path, trigger conditions, or impact scope. CISA’s KEV entry confirms it is a known exploited vulnerability and directs organizations to apply updates per vendor instructions.

Defensive priority

High. CISA KEV inclusion means this vulnerability should be treated as an active remediation priority rather than a routine patch item.

Recommended defensive actions

  • Identify systems and applications that depend on WebKitGTK.
  • Check the vendor’s security updates and apply the relevant fixed version(s) as soon as possible.
  • Use CISA KEV tracking to verify that the issue is removed from the remediation backlog.
  • Validate patch deployment on affected endpoints and embedded systems.
  • Monitor security advisories and asset inventories for any remaining WebKitGTK usage.

Evidence notes

This debrief uses only the supplied corpus and official links. The CVE record and NVD detail confirm the identifier and product naming, while the CISA KEV source item confirms known-exploited status, the remediation due date of 2022-06-13, and the instruction to apply updates per vendor instructions. The corpus does not include CVSS data or deeper exploit details.

Official resources

CISA added CVE-2019-8720 to the Known Exploited Vulnerabilities catalog on 2022-05-23 and set a remediation due date of 2022-06-13. The supplied source notes known exploitation authority status and lists ransomware campaign use as Unknown.