How severe is CVE-2016-4655?

CVE-2016-4655 has a CVSS 3.1 base score of 5.5 (MEDIUM). EPSS estimates a 33.4% probability of exploitation in the next 30 days. It is listed in the CISA Known Exploited Vulnerabilities catalog.

CVE-2016-4655: Apple iOS Information Disclosure Vulnerability

CISA Known Exploited Vulnerabilities

Apple iOS Information Disclosure Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV

2022-05-24

Remediation due

2022-06-14

Required action
Apply updates per vendor instructions.

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

Description

The kernel in Apple iOS before 9.3.5 allows attackers to obtain sensitive information from memory via a crafted app.

Severity

CVSS 3.1 · CISA5.5 MEDIUM

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

SSVC · CISA-ADP

Exploitationactive

Automatableno

Technical impactpartial

Exploitation Context

as of October 13, 2026

All KEV statistics→

CISA added CVE-2016-4655 to the KEV catalog 2,098 days after its CVE record was published.
It is one of 95 Apple entries in the CISA KEV catalog, and one of 26 added in 2022.
Its current EPSS score (33.4%) is higher than that of 43% of CISA KEV entries.

Affected Products

Vendor	Product	Affected versions
-	-	n/a

References

9 Links

Vendor advisories

Exploits & PoCs

44836

Vulnerability databases

Other references

Record Details

Published

2016-08-25

Last updated

2025-10-21

Assigner (CNA)

apple

Credited to

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CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.