CVE-2023-42916
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.
Key facts
- CVSS score
- 6.5 (v3.1)
- Severity
- MEDIUM
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N- Weakness (CWE)
- CWE-125
- EPSS score
- 17.8% (97th percentile)
- In CISA KEV
- Yes, added December 4, 2023
- In EU EUVD
- Yes (EUVD-2023-47337)
- Published
- November 30, 2023
- NVD last modified
- June 17, 2026
- Status
- Analyzed
CISA Known Exploited Vulnerability
Apple Multiple Products WebKit Out-of-Bounds Read Vulnerability
Added to the KEV catalog on December 4, 2023; federal remediation due December 25, 2023.
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2023-47337 in the EU Vulnerability Database. ENISA flags it as known exploited. Last updated in EUVD on October 21, 2025.
View on the EU Vulnerability DatabaseAffected products
- apple / ipados
- apple / iphone os
- apple / macos
- apple / safari
- debian / debian linux
- debian / debian linux
- fedoraproject / fedora
- fedoraproject / fedora
- webkitgtk / webkitgtk+
Certified products that may be affected
13 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.
- Apple macOS 14 Sonoma - Apple Inc. - Common Criteria CCEVS-VR-VID-11584-2025 - active
- Apple iPadOS 17: iPad - Apple Inc. - Common Criteria CCEVS-VR-VID-11447-2025 - active
- Apple macOS 14 Sonoma: FileVault - Apple Inc. - Common Criteria CCEVS-VR-VID-11448-2025 - active
- Strong Customer Authentication for Apple Pay on iPhone 14 Pro with A16 Bionic running iOS 16.4.1Version iOS 16.4.1 (build 20E252) ( ANSSI-CC-2023/59) - Apple Inc. - Common Criteria ANSSI-CC-2023/59 - active
- Strong Customer Authentication for Apple Pay on iPhone SE (3rd generation) with A15 Bionic running iOS 16.4.1iOS 16.4.1 (build 20E252) (ANSSI-CC-2023/58) - Apple Inc. - Common Criteria ANSSI-CC-2023/58 - active
See all 13 in the Security Certifications Explorer.
References
- http://seclists.org/fulldisclosure/2023/Dec/12(Mailing List, Third Party Advisory)
- http://seclists.org/fulldisclosure/2023/Dec/13(Mailing List, Third Party Advisory)
- http://seclists.org/fulldisclosure/2023/Dec/3(Mailing List, Third Party Advisory)
- http://seclists.org/fulldisclosure/2023/Dec/4(Mailing List, Third Party Advisory)
- http://seclists.org/fulldisclosure/2023/Dec/5(Mailing List, Third Party Advisory)
- http://seclists.org/fulldisclosure/2023/Dec/8(Mailing List, Third Party Advisory)
- http://seclists.org/fulldisclosure/2024/Jan/35(Mailing List, Third Party Advisory)
- http://www.openwall.com/lists/oss-security/2023/12/05/1(Mailing List, Third Party Advisory)
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AD2KIHHCUBQC2YYH3FJWAHI5BG3QETOH/(Mailing List)
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/P5LQS6VEI7VIZNC7QGQ62EOV45R5RJIR/(Mailing List)
- https://security.gentoo.org/glsa/202401-04(Third Party Advisory)
- https://support.apple.com/en-us/HT214031(Vendor Advisory)
- https://support.apple.com/en-us/HT214032(Vendor Advisory)
- https://support.apple.com/en-us/HT214033(Vendor Advisory)
- https://support.apple.com/kb/HT214033(Vendor Advisory)
- https://support.apple.com/kb/HT214034(Vendor Advisory)
- https://support.apple.com/kb/HT214062(Vendor Advisory)
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-42916(US Government Resource)
- https://www.debian.org/security/2023/dsa-5575(Mailing List)
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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