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PatchSiren cyber security CVE debrief

CVE-2016-4655 Apple CVE debrief

CVE-2016-4655 is an Apple iOS information disclosure vulnerability that CISA lists in its Known Exploited Vulnerabilities catalog. The supplied corpus does not include technical exploit details, but the KEV listing means defenders should treat it as actively exploited and prioritize patching. CISA added the entry on 2022-05-24 and set a remediation due date of 2022-06-14.

Vendor
Apple
Product
iOS
CVSS
Unknown
CISA KEV
Listed
Original CVE published
2022-05-24
Original CVE updated
2022-05-24
Advisory published
2022-05-24
Advisory updated
2022-05-24

Who should care

Apple iOS administrators, mobile device management teams, security operations staff, and any organization with managed or unmanaged iPhone/iPad fleets should prioritize this issue because it appears in CISA’s KEV catalog.

Technical summary

The available sources identify the issue as an Apple iOS information disclosure vulnerability. No further technical specifics are provided in the supplied corpus. The most important operational fact is that CISA has recorded it as known exploited, so remediation should follow vendor guidance without waiting for additional proof-of-concept detail.

Defensive priority

High. KEV inclusion indicates known exploitation, and the supplied metadata calls for applying updates per vendor instructions. If any affected iOS versions remain in service, remediation should be treated as urgent.

Recommended defensive actions

  • Apply Apple updates per vendor instructions as soon as possible.
  • Confirm which iOS versions and devices are affected in your environment.
  • Use MDM or endpoint management to accelerate deployment and verify compliance.
  • Prioritize internet-exposed, high-risk, and unmanaged devices first.
  • Track remediation against the CISA KEV due date of 2022-06-14 when assessing historical compliance or backlog exposure.

Evidence notes

This debrief is based only on the supplied CISA KEV metadata and the official CVE/NVD resource links. The corpus identifies the vulnerability as Apple iOS information disclosure and records it as a known exploited vulnerability. No exploit mechanism, affected build range, or patch version is provided in the supplied text, so those details are intentionally omitted.

Sources and references

Verified primary and authoritative sources

  • CVE-2016-4655 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2016-4655

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

  • CVE-2016-4655 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2016-4655

    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.