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ExploitedIn CISA KEVFix available

CVE-2024-27834

Exploitation confirmed. First attested on 2026-11-04 by CISA-ADP, CISA KEV, GCVE · previdian.

  • Published2024-05-14
  • Fixed in17.5 · 16.7.8
  • WeaknessCWE-277 · CWE-287

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC
  1. 2024-05-1323:00CVE publishedCNA
  2. 2024-05-1415:13CVE publishedNVD
  3. 2026-11-04Added to the CISA KEV catalogCISA KEV
  4. 2026-11-04Listed as exploited by GCVEGCVE
  5. 2026-11-0420:14Exploitation first reportedCISA-ADP
  6. 2026-11-0420:14SSVC exploitation set to activeCISA-ADP

Versions per branch

NVD · CISA-ADP
Apple iphone os
BranchAffectedFixed in
17.x≥ 17.0, < 17.517.5
17.5≥ -, < 17.517.5
16.7< 16.7.816.7.8
Apple ipados
BranchAffectedFixed in
17.x≥ 17.0, < 17.517.5
16.7< 16.7.816.7.8
Apple macos
BranchAffectedFixed in
14.5< 14.514.5
14.5≥ -, < 14.514.5

7 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA5 products

As apple, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • Apple Safari
    Affected
    • < 17.5fixed in 17.5custom
  • Apple iOS and iPadOS
    Affected
    • < 16.7.8fixed in 16.7.8custom
    • < 17.5fixed in 17.5custom
  • Apple macOS
    Affected
    • < 14.5fixed in 14.5custom
  • Apple tvOS
    Affected
    • < 17.5fixed in 17.5custom
  • Apple watchOS
    Affected
    • < 10.5fixed in 10.5custom

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-04-02

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • qtwebkit-opensource-srcUbuntu:24.04:LTSall versions · no fixed version listed
  • webkit2Mageia:9all versions · fixed in 2.44.2-1.mga9
  • webkit2gtkUbuntu:24.04:LTSall versions · fixed in 2.44.2-0ubuntu0.24.04.1
  • webkit2gtkUbuntu:22.04:LTSall versions · fixed in 2.44.2-0ubuntu0.22.04.1
  • webkit2gtkDebian:12all versions · fixed in 2.44.2-1~deb12u1
  • webkit2gtkDebian:11all versions · fixed in 2.44.2-1~deb11u1
  • webkit2gtk3SUSE:Linux Enterprise Workstation Extension 12 SP5all versions · fixed in 2.44.2-4.7.1
  • webkit2gtk3SUSE:Linux Enterprise Software Development Kit 12 SP5all versions · fixed in 2.44.2-4.7.1

51 more package ranges on OSV.dev

Vendor advisories

  • CVE-2024-27834 Red Hat Product Security151 products fixed · 9 known affected

    webkit: pointer authentication bypass

    webkitgtk as a component of Red Hat Enterprise Linux 6 · webkitgtk-devel as a component of Red Hat Enterprise Linux 6 · webkitgtk-doc as a component of Red Hat Enterprise Linux 6 · +6 more

  • RHSA-2025:10364 Red Hat Product Security13 products fixed

    Red Hat Security Advisory: webkitgtk4 security update

  • RHSA-2024:9636 Red Hat Product Security46 products fixed

    Red Hat Security Advisory: webkit2gtk3 security update

  • RHSA-2023:4201 Red Hat Product Security46 products fixed

    Red Hat Security Advisory: webkit2gtk3 security update

  • RHSA-2023:4202 Red Hat Product Security46 products fixed

    Red Hat Security Advisory: webkit2gtk3 security update

Full record on NVD

Fix

  1. Update Apple iphone os to 17.5 · 16.7.8
  2. CISA’s required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.due 2026-11-18
  3. Vendor fix Red Hat Product Security RHSA-2025:10364 · 13 productsFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
  4. Workaround from the vendor Red Hat Product Security RHSA-2025:10364 · 13 productsMitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
  5. No fix planned, says the vendor Red Hat Product Security CVE-2024-27834 · 9 productsOut of support scope

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

CISA Known Exploited Vulnerability

Date Added
2026-11-04
Patch Due Date
2026-11-18
Ransomware Use
Unknown
Required Action
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Published
2024-05-14
Last Modified
2026-11-05
NVD status
Analyzed
GitHub Advisory
GHSA-4rmp-jjj9-cfm4

Frequently asked questions

What is CVE-2024-27834?

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.

Is CVE-2024-27834 actively exploited?

Yes. CVE-2024-27834 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2026-11-18.

What is the CVSS score for CVE-2024-27834?

CVE-2024-27834 has a CVSS v3 base score of 5.5 (MEDIUM severity), with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.

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Sources for this record