CVE-2024-27834
What it is
The issue was addressed with improved checks. This issue is fixed in Safari 17.5, iOS 16.7.8 and iPadOS 16.7.8, iOS 17.5 and iPadOS 17.5, macOS Sonoma 14.5, tvOS 17.5, watchOS 10.5. An attacker with arbitrary read and write capability may be able to bypass Pointer Authentication.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of data tampering.
- In the wild
- CISA lists this as exploited in real attacks. Treat as urgent.
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- ReservedThe CVE id was reserved by its CNA
- PublishedDisclosed publicly on CVE.org and NVD
- 2026-11-04 Exploited in the wildAdded to CISA's Known Exploited Vulnerabilities list
- Last updatedMost recent change to the record
- 2026-11-18 Remediation deadlineCISA's due date for federal agencies to fix it
Why it ranks here
- Exploited in the wild: yes, CISA lists it. This puts it above everything that is not.
- Exploit odds: 1.5% in the next 30 days (EPSS).
- Severity: 5.5 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Added to CISA KEV
- 2026-11-04
- Exploit probability
- 1.5% · EPSS, next 30 days
- Weakness
- CWE-287 · Improper authentication
- Record status
- Analyzed
Affected
- Apple Safari < 17.5
- Apple Ipados < 16.7.8
- Apple Ipados < 17.5
- Apple Iphone Os < 16.7.8
- Apple Iphone Os < 17.5
- Apple macOS < 14.5
- Apple Tvos < 17.5
- Apple Watchos < 10.5
Attack profile CVSS 3.1 · 5.5
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- High
- Availability
- None
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2024-27834.md and follow it. Check whether this project is affected by CVE-2024-27834. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://support.apple.com/en-us/120896
- https://support.apple.com/en-us/120898
- https://support.apple.com/en-us/120901
- https://support.apple.com/en-us/120902
- https://support.apple.com/en-us/120903
- https://support.apple.com/en-us/120905
- https://support.apple.com/en-us/HT214101
- https://support.apple.com/en-us/HT214102
- https://support.apple.com/en-us/HT214103
- https://support.apple.com/en-us/HT214104
References
- https://support.apple.com/en-us/120896
- https://support.apple.com/en-us/120898
- https://support.apple.com/en-us/120901
- https://support.apple.com/en-us/120902
- https://support.apple.com/en-us/120903
- https://support.apple.com/en-us/120905
- http://seclists.org/fulldisclosure/2024/May/10
- http://seclists.org/fulldisclosure/2024/May/12
- http://seclists.org/fulldisclosure/2024/May/16
- http://seclists.org/fulldisclosure/2024/May/17
- http://seclists.org/fulldisclosure/2024/May/9
- http://www.openwall.com/lists/oss-security/2024/05/21/1
- https://lists.fedoraproject.org/archives/list/[email protected]/message/ADCLQW54XN37VJZNYD3UKCYATJFIMYXG/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/WKIXADCW3O4R2OOSDZGPU55XQFE6NA3M/
- https://support.apple.com/en-us/HT214101
- https://support.apple.com/en-us/HT214102
- https://support.apple.com/en-us/HT214103
- https://support.apple.com/en-us/HT214104
- https://support.apple.com/en-us/HT214106
- https://support.apple.com/kb/HT214100
- https://support.apple.com/kb/HT214102
- https://support.apple.com/kb/HT214104
- https://support.apple.com/kb/HT214106
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-27834
- https://www.sekoia.com/blog/poisoned-source-apt29-watering-holes-targets-mobile-devices-with-n-day-exploits