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PatchSiren cyber security CVE debrief

CVE-2020-27930 Apple CVE debrief

CVE-2020-27930 is an Apple memory corruption vulnerability affecting multiple products and was added to CISA’s Known Exploited Vulnerabilities catalog. That designation means CISA had evidence of active exploitation, so defenders should treat it as a high-priority patching and exposure-management item. The supplied corpus does not include detailed affected-component or exploit-behavior information, so response should be driven by vendor remediation guidance and rapid asset coverage.

Vendor
Apple
Product
Multiple Products
CVSS
Unknown
CISA KEV
Listed
Original CVE published
2021-11-03
Original CVE updated
2021-11-03
Advisory published
2021-11-03
Advisory updated
2021-11-03

Who should care

Apple device administrators, endpoint and fleet management teams, security operations, vulnerability management, and any organization running Apple products that may be in scope for vendor updates.

Technical summary

The available source material identifies CVE-2020-27930 as an Apple Multiple Products memory corruption vulnerability. CISA lists it in the Known Exploited Vulnerabilities catalog with a date added of 2021-11-03 and a remediation deadline of 2022-05-03. No additional technical detail about the affected Apple components, attack vector, or exploit mechanics is provided in the supplied corpus.

Defensive priority

High. CISA KEV inclusion indicates known exploitation, which generally warrants immediate inventory confirmation, accelerated patch deployment, and validation that all affected Apple systems are updated per vendor instructions.

Recommended defensive actions

  • Identify all Apple devices and services in your environment that may rely on affected products.
  • Apply vendor updates and follow Apple remediation instructions as soon as possible.
  • Prioritize high-value, internet-facing, and user-facing Apple endpoints for verification first.
  • Confirm patch status through endpoint management or vulnerability management tooling rather than manual spot checks alone.
  • Monitor security advisories and asset inventories for any systems that could not be updated immediately.

Evidence notes

Evidence is limited to the supplied CVE metadata and CISA KEV record. CISA’s source item identifies the vulnerability as 'Apple Multiple Products Memory Corruption Vulnerability,' marks it as known exploited, and states 'Apply updates per vendor instructions.' No exploit narrative, affected version list, or CVSS score was included in the provided corpus.

Sources and references

Verified primary and authoritative sources

  • CVE-2020-27930 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2020-27930

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

  • CVE-2020-27930 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2020-27930

    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.