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PatchSiren cyber security CVE debrief

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.

Sources and references

Verified primary and authoritative sources

  • CVE-2019-8720 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2019-8720

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2019-8720 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2019-8720

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

  • CISA Known Exploited Vulnerabilities catalog

    Publisher, destination, and source semantics verified

    URL: https://www.cisa.gov/known-exploited-vulnerabilities-catalog

    Cybersecurity and Infrastructure Security Agency - Official CISA catalog of vulnerabilities known to be exploited in the wild.

Supplemental references

  • Source item URL

    Unverified legacy reference

    URL: https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json

    cisa_kev

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.