Security readout for executives and security teams
CVE-2016-4656 is an Apple iOS kernel memory corruption flaw fixed in iOS 9.3.5. A crafted app could let an attacker run code with privileged kernel context or crash the device. This matters most for legacy iOS devices still below 9.3.5. Exposure is mainly legacy Apple iOS devices running versions before 9.3.5. The provided affected-product metadata is incomplete, but Apple’s advisory and CVE description identify iOS before 9.3.5. No non-iOS affected products are supported by the provided sources. Prioritize remediation where legacy iOS devices still access email, identity, executive communications, or regulated data. For modern fleets, confirm absence of pre-9.3.5 devices and document closure. Mitigation focus: Upgrade affected iOS devices to iOS 9.3.5 or later.; Retire devices that cannot run a patched iOS version.; Check Apple guidance for device-specific update availability..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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Open ATT&CK lookup- Severity
- High
- CVSS
- 7.8 (3.1)
- Known Exploited
- Yes
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
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CISA KEV status
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H1.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://blog.lookout.com/blog/2016/08/25/trident-pegasus/CVE reference · x_refsource_MISC
- 44836CVE reference · exploit, x_refsource_EXPLOIT-DB
- https://support.apple.com/HT207107CVE reference · x_refsource_CONFIRM
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-4656CVE reference · government-resource
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Out-of-bounds Write
Out-of-bounds Write represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.