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VulnerabilityPublished Updated

CVE-2026-84597: Apple iOS and iPadOS · Out-of-bounds Read

Affects Apple iOS and iPadOSSource CVE Database V5

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Not known to be exploited · CVSS 6.5 Medium : upgrade to 27 when convenient.

Data as of 30 Oct 2026, 12:04 UTC

CVSS 3.1 base score
6.5Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CISA-ADPCVSS 3.16.5
EPSS
0.4% chance of exploitation in 30 days – higher than 34% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 27
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 14 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Upgrade iOS and iPadOS and macOS and tvOS and visionOS and watchOS and apple/ios and apple/ipados to 27.

Affected software

ProductAffectedFixed in
AppleiOS and iPadOSAffected
  • <27
Fixed in
  • 27
ApplemacOSAffected
  • <27
Fixed in
  • 27
AppletvOSAffected
  • <27
Fixed in
  • 27
ApplevisionOSAffected
  • <27
Fixed in
  • 27
ApplewatchOSAffected
  • <27
Fixed in
  • 27
Appleapple/iospkg:deb/apple/iosOther threatsAffected
  • <27
Fixed in
  • 27

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Apply the official update to version 27 or later of iOS, iPadOS, macOS Golden Gate, tvOS, visionOS, and watchOS to remediate this vulnerability. The fix includes improved input validation to prevent out-of-bounds reads. No additional mitigation steps are indicated by the vendor.

Description

CVE-2026-84597 is an out-of-bounds read vulnerability in Apple iOS, iPadOS, macOS Golden Gate, tvOS, visionOS, and watchOS. It occurs when processing a maliciously crafted font, potentially leading to disclosure of process memory. The issue is addressed by improved input validation and fixed in version 27 of the affected operating systems.

References

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