Back
CVE-2016-4656
The kernel in Apple iOS before 9.3.5 allows attackers to execute arbitrary code in a privileged context or cause a denial of service…
High7.8Known exploitedEPSS 23.6%
- Published
- Updated
- Reserved
- Assigned by
- apple
Description
The kernel in Apple iOS before 9.3.5 allows attackers to execute arbitrary code in a privileged context or cause a denial of service (memory corruption) via a crafted app.
Exploited in the wild
CISA lists this vulnerability in its Known Exploited Vulnerabilities catalog as Apple iOS Memory Corruption Vulnerability.
- Added
- 24 May 2022
- Fix due (US federal)
- 14 Jun 2022
- Used by ransomware
- Not known
Apply updates per vendor instructions.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVDNVD · Analyzed | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 23.6% · top 2.2% of all CVEs (2 Nov 2026)
- CISA SSVC
- Exploitation: active · Automatable: no · Technical impact: total
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Weakness
Affected products
n/a
- affected n/a
References (7)
- https://blog.lookout.com/blog/2016/08/25/trident-pegasus/ (opens in a new tab)x_refsource_MISCx_transferred
- 44836 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
- https://support.apple.com/HT207107 (opens in a new tab)x_refsource_CONFIRMx_transferred
- APPLE-SA-2016-08-25-1 (opens in a new tab)vendor-advisoryx_refsource_APPLEx_transferred
- 92652 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 1036694 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-4656 (opens in a new tab)government-resource
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- CISA KEV catalog (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Record last updated .