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CVE-2024-27834 Known exploited

The issue was addressed with improved checks.

Products / packages Apple Safari · Apple iOS and iPadOS · Apple macOS · 2 more

Published

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Severity and exploitation

Known exploited
KEV checked 05/11/2026, 06:00:33 UTCAdded 2026-11-04
OSV · CVSS:3.1 · 5.5
Assessment vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
CISA-ADP · CVSS:3.1 · 5.5
Assessment vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
The headline uses the highest imported catalog score. Assessments can differ by source and CVSS version.

Severity

medium5.5

CVSS measures technical severity, not the likelihood of an attack.

Known exploitation

Confirmed exploited · CISA KEV

CISA has recorded exploitation in the wild. Review its required action.

Public exploit

Not established by this record

Missing evidence does not mean no public exploit exists.

Remediation

Source guidance available

Review the recorded instructions. Guidance may be a workaround rather than a fixed version.

What this means

Apple products, including Safari, iOS, iPadOS, macOS, tvOS, and watchOS, have a vulnerability that may allow an attacker with arbitrary read and write capability to bypass Pointer Authentication. The issue is fixed in versions Safari 17.5, iOS 16.7.8, iPadOS 16.7.8, iOS 17.5, iPadOS 17.5, macOS Sonoma 14.5, tvOS 17.5, and watchOS 10.5. An attacker may exploit this weakness, classified as Improper Authentication.

Summarized by @cf/meta/llama-3.3-70b-instruct-fp8-fast. Verify details against the original sources.

Attack conditions

No attack-condition excerpt has been identified here. Review the full source description and references for authentication, network access, and configuration requirements.

Review supporting sources →

Affected versions

Check the exact model, release, and any platform requirements against your installation.

Apple · apple

Safari

1 range
apple version evidence

Compare with this publisher’s ranges. This does not inspect your installation.

affected

0 → before 17.5

custom versions

unaffected

unknown

Other versions: unknown

Apple · apple

iOS and iPadOS

2 ranges
apple version evidence

Compare with this publisher’s ranges. This does not inspect your installation.

affected

0 → before 16.7.8

custom versions

0 → before 17.5

custom versions

unaffected

unknown

Other versions: unknown

Apple · apple

macOS

1 range
apple version evidence

Compare with this publisher’s ranges. This does not inspect your installation.

affected

0 → before 14.5

custom versions

unaffected

unknown

Other versions: unknown

Apple · apple

tvOS

1 range
apple version evidence

Compare with this publisher’s ranges. This does not inspect your installation.

affected

0 → before 17.5

custom versions

unaffected

unknown

Other versions: unknown

Apple · apple

watchOS

1 range
apple version evidence

Compare with this publisher’s ranges. This does not inspect your installation.

affected

0 → before 10.5

custom versions

unaffected

unknown

Other versions: unknown

Automatic dependency matching is unavailable for this record. Use the product evidence and publisher’s instructions to check your installation.

Source version evidence

This source records affected versions without identifying a package ecosystem and name. This evidence is not used for package matching.

What to do

Compare your installed product and version with the affected versions above. A matching product name alone does not confirm exposure.

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.

CISA required action ↗

cve.new guidance unless attributed to a publisher. This page does not inspect your installation.

Public exploit evidence

No public exploit reference is identified in the imported evidence. This is not a claim that no exploit exists.

Original source description

Read the full publisher 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.

References

25 sources
support.apple.com/kb/HT214100
Source referenceCVE
support.apple.com/kb/HT214102
Source referenceCVE
support.apple.com/kb/HT214104
Source referenceCVE
support.apple.com/kb/HT214106
Source referenceCVE
support.apple.com/en-us/HT214102
Source referenceCVE
support.apple.com/en-us/HT214103
Source referenceCVE
View 19 more references
support.apple.com/en-us/HT214106
Source referenceCVE
support.apple.com/en-us/HT214101
Source referenceCVE
support.apple.com/en-us/HT214104
Source referenceCVE
www.openwall.com/lists/oss-security/2024/05/21/1
Security advisoryCVE
seclists.org/fulldisclosure/2024/May/12
Source referenceCVE
lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ADCLQW54XN37VJZNYD3UKCYATJFIMYXG/
Source referenceCVE
lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WKIXADCW3O4R2OOSDZGPU55XQFE6NA3M/
Source referenceCVE
seclists.org/fulldisclosure/2024/May/10
Source referenceCVE
seclists.org/fulldisclosure/2024/May/17
Source referenceCVE
seclists.org/fulldisclosure/2024/May/9
Source referenceCVE
seclists.org/fulldisclosure/2024/May/16
Source referenceCVE
support.apple.com/en-us/120896
Source referenceapple
support.apple.com/en-us/120898
Source referenceapple
support.apple.com/en-us/120901
Source referenceapple
support.apple.com/en-us/120902
Source referenceapple
support.apple.com/en-us/120903
Source referenceapple
support.apple.com/en-us/120905
Source referenceapple
www.sekoia.com/blog/poisoned-source-apt29-watering-holes-targets-mobile-devices-with-n-day-exploits
Source referenceCISA-ADP
www.cisa.gov/known-exploited-vulnerabilities-catalog
Security advisoryCISA-ADP

Inside the record

Evidence available

Package identity · not supplied
Version evidence
Remediation guidance · not supplied
Weakness classification
Additional publishers

Describes the evidence in this view, not whether the product is safe.

Original records

CVE-2024-27834

View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.

cve.new JSON →

Underlying weaknesses

The source’s classification of what caused the vulnerability.

CWE-287 ↗

CWE-287 Improper Authentication

CISA-ADP

Related →
Contributing organizations · 3
apple

Assigning organization

2026-04-02
CISA-ADP

Additional data publisher

2026-11-05
CVE

Additional data publisher

2025-11-04

Timeline

All times UTC

  1. Advisory published

    Publication date supplied by the source.

  2. Added to CISA KEV

    CISA recorded known exploitation.

  3. Source updated

    Latest modification date supplied by the source.

  4. Last imported by cve.new

    Latest catalog import, not the date we first saw this advisory.

What changed

Follow changes
  1. CVE · CVE-2024-27834

    Observed 2026-11-05T05:09:48.815Z · upstream updated 2026-11-05T04:56:43.814Z

    Prioritization updated

    before

    [
  {
    "source": "CISA-ADP",
    "type": "SSVC",
    "role": "CISA Coordinator",
    "timestamp": "2026-11-04T20:14:40.746813Z",
    "decisions": [
      {
        "name": "Exploitation",
        "value": "active"
      },
      {
        "name": "Automatable",
        "value": "no"
      },
      {
        "name": "Technical Impact",
        "value": "partial"
      }
    ]
  }
]

    after

    [
  {
    "source": "CISA-ADP",
    "type": "SSVC",
    "role": "CISA Coordinator",
    "timestamp": "2026-11-04T00:00:00+00:00",
    "decisions": [
      {
        "name": "Exploitation",
        "value": "active"
      },
      {
        "name": "Automatable",
        "value": "no"
      },
      {
        "name": "Technical Impact",
        "value": "partial"
      }
    ]
  }
]
  2. CVE · CVE-2024-27834

    Observed 2026-11-04T20:58:53.532Z · upstream updated 2026-11-04T20:21:06.825Z

    References changed

    before

    [
  "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/HT214106",
  "https://support.apple.com/en-us/HT214104",
  "https://support.apple.com/en-us/HT214103",
  "https://support.apple.com/en-us/HT214102",
  "http://seclists.org/fulldisclosure/2024/May/17",
  "http://www.openwall.com/lists/oss-security/2024/05/21/1",
  "http://seclists.org/fulldisclosure/2024/May/10",
  "http://seclists.org/fulldisclosure/2024/May/9",
  "http://seclists.org/fulldisclosure/2024/May/12",
  "http://seclists.org/fulldisclosure/2024/May/16",
  "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WKIXADCW3O4R2OOSDZGPU55XQFE6NA3M/",
  "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ADCLQW54XN37VJZNYD3UKCYATJFIMYXG/",
  "https://support.apple.com/kb/HT214106",
  "https://support.apple.com/kb/HT214104",
  "https://support.apple.com/kb/HT214102",
  "https://support.apple.com/kb/HT214100"
]

    after

    [
  "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://www.sekoia.com/blog/poisoned-source-apt29-watering-holes-targets-mobile-devices-with-n-day-exploits",
  "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-27834",
  "https://support.apple.com/en-us/HT214101",
  "https://support.apple.com/en-us/HT214106",
  "https://support.apple.com/en-us/HT214104",
  "https://support.apple.com/en-us/HT214103",
  "https://support.apple.com/en-us/HT214102",
  "http://seclists.org/fulldisclosure/2024/May/17",
  "http://www.openwall.com/lists/oss-security/2024/05/21/1",
  "http://seclists.org/fulldisclosure/2024/May/10",
  "http://seclists.org/fulldisclosure/2024/May/9",
  "http://seclists.org/fulldisclosure/2024/May/12",
  "http://seclists.org/fulldisclosure/2024/May/16",
  "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WKIXADCW3O4R2OOSDZGPU55XQFE6NA3M/",
  "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ADCLQW54XN37VJZNYD3UKCYATJFIMYXG/",
  "https://support.apple.com/kb/HT214106",
  "https://support.apple.com/kb/HT214104",
  "https://support.apple.com/kb/HT214102",
  "https://support.apple.com/kb/HT214100"
]
    Prioritization updated

    before

    [
  {
    "source": "CISA-ADP",
    "type": "SSVC",
    "role": "CISA Coordinator",
    "timestamp": "2026-11-04T17:36:46.499968Z",
    "decisions": [
      {
        "name": "Exploitation",
        "value": "none"
      },
      {
        "name": "Automatable",
        "value": "no"
      },
      {
        "name": "Technical Impact",
        "value": "partial"
      }
    ]
  }
]

    after

    [
  {
    "source": "CISA-ADP",
    "type": "SSVC",
    "role": "CISA Coordinator",
    "timestamp": "2026-11-04T20:14:40.746813Z",
    "decisions": [
      {
        "name": "Exploitation",
        "value": "active"
      },
      {
        "name": "Automatable",
        "value": "no"
      },
      {
        "name": "Technical Impact",
        "value": "partial"
      }
    ]
  }
]
  3. CVE · CVE-2024-27834

    Observed 2026-11-04T18:51:23.553Z · upstream updated 2026-11-04T17:36:58.118Z

    Prioritization updated

    before

    [
  {
    "source": "CISA-ADP",
    "type": "SSVC",
    "role": "CISA Coordinator",
    "timestamp": "2024-05-16T04:00:11.988391Z",
    "decisions": [
      {
        "name": "Exploitation",
        "value": "none"
      },
      {
        "name": "Automatable",
        "value": "yes"
      },
      {
        "name": "Technical Impact",
        "value": "total"
      }
    ]
  }
]

    after

    [
  {
    "source": "CISA-ADP",
    "type": "SSVC",
    "role": "CISA Coordinator",
    "timestamp": "2026-11-04T17:36:46.499968Z",
    "decisions": [
      {
        "name": "Exploitation",
        "value": "none"
      },
      {
        "name": "Automatable",
        "value": "no"
      },
      {
        "name": "Technical Impact",
        "value": "partial"
      }
    ]
  }
]

Large field values are marked as truncated previews. Original source snapshots remain retained.

Showing up to 50 most recent observed changes.