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PatchSiren cyber security CVE debrief

CVE-2023-32435 Apple CVE debrief

CVE-2023-32435 is an Apple WebKit memory corruption vulnerability that CISA added to the Known Exploited Vulnerabilities (KEV) catalog on 2023-06-23. Because it appears in KEV, defenders should treat it as an active-risk issue and prioritize Apple’s updates referenced in the CISA entry.

Vendor
Apple
Product
Multiple Products
CVSS
Unknown
CISA KEV
Listed
Original CVE published
2023-06-23
Original CVE updated
2023-06-23
Advisory published
2023-06-23
Advisory updated
2023-06-23

Who should care

Organizations that use Apple devices or software, especially teams responsible for endpoint management, browser security, and rapid patch deployment. Any environment where Apple-supported products are in regular use should prioritize this CVE.

Technical summary

The available source material identifies this as a WebKit memory corruption vulnerability affecting Apple multiple products. CISA’s KEV listing marks the issue as known exploited and points to Apple support advisories for remediation. No additional technical root-cause or affected-version detail is provided in the supplied corpus.

Defensive priority

High. CISA’s KEV inclusion is the strongest prioritization signal in the provided evidence, and the catalog notes require applying vendor updates. Treat remediation as urgent and time-sensitive.

Recommended defensive actions

  • Apply Apple updates per the vendor instructions referenced in the CISA KEV entry.
  • Prioritize any Apple endpoints, browsers, and user-facing systems that rely on WebKit.
  • Verify asset inventory for Apple products and confirm patch status against the vendor advisories linked from the KEV record.
  • Escalate unpatched systems for rapid remediation, since KEV inclusion indicates known exploitation risk.
  • Monitor internal vulnerability management queues for this CVE until all affected Apple systems are confirmed updated.

Evidence notes

The supplied corpus contains a CISA KEV record for CVE-2023-32435 with dateAdded 2023-06-23 and dueDate 2023-07-14. The KEV metadata names the issue as an Apple Multiple Products WebKit Memory Corruption Vulnerability and directs defenders to Apple support advisories (HT213670, HT213671, HT213676, HT213811). No CVSS score, version range, or exploit details were provided in the supplied source set.

Official resources

Publicly identified in the supplied corpus on 2023-06-23, when CISA added the CVE to the Known Exploited Vulnerabilities catalog. The provided records do not include an earlier disclosure timeline.