Known exploited vulnerability
CVE-2016-4657
The short answer
CVE-2016-4657 affects n/a n/a and is rated high (CVSS 8.8). CISA added it to the Known Exploited Vulnerabilities catalog on 2022-05-24: attackers are using it, so patch it first.
What it is
WebKit in Apple iOS before 9.3.5 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site.
Weakness: CWE-787.
Severity
8.8 high
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Exploited (CISA KEV)
Yes, since May 24, 2022
Federal due date Jun 14, 2022
EPSS, next 30 days
67%
Higher than 99% of scored CVEs
How it can be exploited
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
What CISA says to do
Apply updates per vendor instructions.
Affected products
n/a. NVD's record lists the exact affected versions.
References
- blog.lookout.com/blog/2016/08/25/trident-pegasus/ Broken Link
- support.apple.com/HT207107 Release NotesVendor Advisory
- www.exploit-db.com/exploits/44836/ ExploitThird Party AdvisoryVDB Entry
- www.youtube.com/watch?v=xkdPjbaLngE Exploit
- blog.lookout.com/blog/2016/08/25/trident-pegasus/ Broken Link
- support.apple.com/HT207107 Release NotesVendor Advisory
- www.exploit-db.com/exploits/44836/ ExploitThird Party AdvisoryVDB Entry
- www.youtube.com/watch?v=xkdPjbaLngE Exploit
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-4657 US Government Resource
Questions
Is CVE-2016-4657 being exploited?
Yes. CISA added CVE-2016-4657 to its Known Exploited Vulnerabilities catalog on 2022-05-24, with a federal remediation due date of 2022-06-14.
How do I fix CVE-2016-4657?
CISA's required action: Apply updates per vendor instructions.
From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.
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