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Fencer Vulns
medium 6.5

CVE-2025-31203 json

An integer overflow was addressed with improved input validation.

published 2025-04-29 18 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-12654

cvss
6.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 32%
public exploits
0
none known

Summary

An integer overflow was addressed with improved input validation. This issue is fixed in iOS 18.4 and iPadOS 18.4, iPadOS 17.7.6, macOS Sequoia 15.4, macOS Sonoma 14.7.5, tvOS 18.4, visionOS 2.4, watchOS 11.4. An attacker on the local network may be able to cause a denial-of-service.

Patch / fix

  • Apple iOS and iPadOS 18.4
  • Apple iPadOS 17.7.6
  • Apple macOS 14.7.5, 15.4
  • Apple tvOS 18.4
  • Apple visionOS 2.4
  • Apple watchOS 11.4

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
18 mo ago

Exploit prediction

0.38% chance of exploitation in the next 30 days, higher than 32% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 6.5 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA 3.1 6.5 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

  • Apple iOS and iPadOS
  • Apple iPadOS
  • Apple macOS
  • Apple tvOS
  • Apple visionOS
  • Apple watchOS

Classification

Weakness
  • CWE-190 Integer Overflow or Wraparound

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.