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PatchSiren cyber security CVE debrief

CVE-2023-32373 Apple CVE debrief

CVE-2023-32373 is an Apple WebKit use-after-free vulnerability affecting multiple products. CISA included it in the Known Exploited Vulnerabilities catalog on 2023-05-22, which means defenders should treat it as an actively exploited issue and prioritize Apple vendor updates.

Vendor
Apple
Product
Multiple Products
CVSS
Unknown
CISA KEV
Listed
Original CVE published
2023-05-22
Original CVE updated
2023-05-22
Advisory published
2023-05-22
Advisory updated
2023-05-22

Who should care

Security teams and administrators responsible for Apple device fleets, as well as end users who rely on Apple products that receive WebKit-related updates. This is especially important for organizations that centrally manage patching and need to confirm remediation against the CISA KEV deadline.

Technical summary

The vulnerability is described as a WebKit use-after-free condition in Apple multiple products. The supplied corpus does not include CVSS scoring or detailed affected-version data, but CISA’s KEV listing indicates known exploitation and directs organizations to apply Apple updates per vendor instructions.

Defensive priority

High

Recommended defensive actions

  • Apply the relevant Apple security updates as soon as possible using the vendor guidance referenced in the CISA KEV entry.
  • Confirm that all managed Apple devices have been updated and that any lagging systems are tracked to closure.
  • Prioritize remediation for devices that regularly process untrusted web content or are broadly used across the organization.
  • Validate patch compliance against the CISA KEV due date of 2023-06-12 if historical tracking is needed.
  • Monitor Apple and CISA advisories for any follow-up guidance or related remediation notes.

Evidence notes

This debrief is limited to the supplied source corpus and official links. The corpus identifies Apple as the vendor, WebKit use-after-free as the vulnerability type, and CISA KEV as the exploitation authority. CISA metadata lists the issue as added on 2023-05-22 with a due date of 2023-06-12 and references Apple support articles HT213757, HT213758, HT213761, HT213762, HT213764, and HT213765. No CVSS score or detailed version-range data was provided in the supplied materials.

Sources and references

Verified primary and authoritative sources

  • CVE-2023-32373 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2023-32373

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

  • CVE-2023-32373 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2023-32373

    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.