CVE-2016-4655
CVE-2016-4655 is a medium-severity vulnerability in Apple Iphone Os with a CVSS 3.x base score of 5.5. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2022-05-24).
Key facts
- Severity: Medium (CVSS 3.x base score 5.5)
- CVSS v2: 7.1
- EPSS exploit prediction: 33% (98th percentile)
- Actively exploited: Yes — listed in CISA KEV (added 2022-05-24)
- EU (EUVD) id: EUVD-2016-5641
- EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2022-05-24)
- Affected product: Apple Iphone Os
- Published:
- Last modified:
Description
The kernel in Apple iOS before 9.3.5 allows attackers to obtain sensitive information from memory via a crafted app.
Frequently asked questions
- What is CVE-2016-4655?
- The kernel in Apple iOS before 9.3.5 allows attackers to obtain sensitive information from memory via a crafted app.
- How severe is CVE-2016-4655?
- CVE-2016-4655 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.
- Is CVE-2016-4655 being actively exploited?
- Yes. CVE-2016-4655 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2022-05-24, which means active exploitation has been confirmed. It should be prioritised for remediation.
- What products are affected by CVE-2016-4655?
- CVE-2016-4655 primarily affects Apple Iphone Os. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2016-4655?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
- Does CVE-2016-4655 have an EU (EUVD) identifier?
- Yes. CVE-2016-4655 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2016-5641. It is also flagged as exploited in the EUVD (since 2022-05-24).
- When was CVE-2016-4655 published?
- CVE-2016-4655 was published on 2016-08-25 and last updated on 2026-06-17.
References
- http://lists.apple.com/archives/security-announce/2016/Aug/msg00000.html
- http://lists.apple.com/archives/security-announce/2016/Sep/msg00005.html
- http://www.securityfocus.com/bid/92651
- http://www.securityfocus.com/bid/92965
- http://www.securitytracker.com/id/1036694
- https://blog.lookout.com/blog/2016/08/25/trident-pegasus/
- https://support.apple.com/HT207107
- https://support.apple.com/HT207145
- https://www.exploit-db.com/exploits/44836/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-4655
Affected products (2)
- cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
- cpe:2.3:o:apple:iphone_os:10.0:*:*:*:*:*:*:*
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