CVE-2023-42916
Apple Multiple Products: WebKit Out-of-Bounds Read
As of , CVE-2023-42916 in Apple Multiple Products is on CISA's list of exploited vulnerabilities: CISA listed it on . Our patch-first group: Patch soon.
- Exploited
- Yes: CISA listed it on 4 December 2023
- US federal deadline
- 25 December 202321 days after CISA listed it. US federal civilian agencies must fix it by then.
- Used in ransomware campaigns
- Not known to CISA
- EPSS score
- 0.18Higher than 97% of the CVEs EPSS scores. EPSS estimates the chance of exploitation activity in the next 30 days.
- EPSS when listed
- 0.00 on 4 December 2023EPSS on the day CISA listed it.
- Public exploit
- None foundNeither Metasploit nor Exploit-DB lists one.
- Fix
- Vendor advice: support.apple.comLinks below, from CISA's entry.
What CISA says to do
Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
CISA's required action
What the flaw is
Apple iOS, iPadOS, macOS, and Safari WebKit contain an out-of-bounds read vulnerability that may disclose sensitive information when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.
CISA's description
An out-of-bounds read was addressed with improved input validation. This issue is fixed in iOS 17.1.2 and iPadOS 17.1.2, macOS Sonoma 14.1.2, Safari 17.1.2. Processing web content may disclose sensitive information. Apple is aware of a report that this issue may have been exploited against versions of iOS before iOS 16.7.1.
The CVE record's description, from apple
- CVE published
- 30 November 2023
- Assigned by
- apple
- CVSS
- 6.5 Medium (CVSS 3.1, from CISA-ADP)
- CWE-125
- Out-of-bounds Read
- CISA SSVC, exploitation
- active
- CISA SSVC, automatable
- no
- CISA SSVC, technical impact
- partial
Timeline
- The CVE record was published.
- CISA added it to its list of exploited vulnerabilities.
- The US federal deadline to fix it.
Multiple Products: other exploited entries
| Vulnerability | Product | Our group | Listed | Deadline | EPSS |
|---|---|---|---|---|---|
| CVE-2026-86950Out-of-Bounds Write | Apple Multiple Products | Patch nowForensic triage required by CISA; listed in the last 14 days | 0.01 | ||
| CVE-2021-30860Integer Overflow | Apple Multiple Products | Patch this weekEPSS 0.76 | 0.76 | ||
| CVE-2023-32434Integer Overflow | Apple Multiple Products | Patch this weekEPSS 0.52 | 0.52 | ||
| CVE-2019-8605Use-After-Free | Apple Multiple Products | Patch soonVerified Exploit-DB entry | 0.18 | ||
| CVE-2020-3837Memory Corruption | Apple Multiple Products | Patch soonVerified Exploit-DB entry | 0.15 | ||
| CVE-2019-8506Type Confusion | Apple Multiple Products | Patch soonVerified Exploit-DB entry | 0.16 | ||
| CVE-2023-28205WebKit Use-After-Free | Apple Multiple Products | Patch soon | 0.27 | ||
| CVE-2021-30807Memory Corruption | Apple Multiple Products | Patch soon | 0.29 | ||
| CVE-2025-31200Memory Corruption | Apple Multiple Products | Patch soon | 0.19 | ||
| CVE-2025-24085Use-After-Free | Apple Multiple Products | Patch soon | 0.18 |
Read further
- CVE recordcve.org
- NVD entrynvd.nist.gov
- CISA's catalogcisa.gov
- EPSS for this CVEapi.first.org