01 Record
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 (memory corruption) via a crafted app.
HighKEVPUBLISHEDCNA: apple
CNA base score7.8 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
02 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.
03 Exploitation and scoring
- Exploitation
- Exploited in the wild. Listed in the CISA Known Exploited Vulnerabilities catalog on 2022-05-24. Federal remediation due 2022-06-14.
- SSVC decision
- ExploitationactiveCISA reports credible evidence of active exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
- EPSS probability
- 23.62% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 97.7% of scored records. A rank, not a probability.
- NVD base score
- 7.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- NVD analysis status
- Analyzed. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2016-08-25 21:00Z10 YR AGO
- Last updated
- 2025-10-21 23:55Z1 YR AGO
- Reserved
- 2016-05-11
- Assigning CNA
- apple
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.8)
- CNA CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-787Out-of-bounds WriteBase
- Data version
- 5.1
- Document digest
- 9303c36c01af5f4070ce53f25797da55af12f2cb6a83380e3e3945fd78d2ca17
05 Affected products
VendorProductVersionsPlatforms
06 References
- blog.lookout.comhttps://blog.lookout.com/blog/2016/08/25/trident-pegasus/
- www.exploit-db.com44836https://www.exploit-db.com/exploits/44836/
- support.apple.comhttps://support.apple.com/HT207107
- lists.apple.comAPPLE-SA-2016-08-25-1http://lists.apple.com/archives/security-announce/2016/Aug/msg00000.html
- www.securityfocus.com92652http://www.securityfocus.com/bid/92652
- www.securitytracker.com1036694http://www.securitytracker.com/id/1036694
- www.cisa.govhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-4656