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Fencer Vulns
high 7.1

CVE-2024-27857 json

An out-of-bounds access issue was addressed with improved bounds checking.

published 2024-06-10 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-25050

cvss
7.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.8%
EPSS 1.8% chance of exploitation in 30 days, percentile 78%
public exploits
0
none known

Summary

An out-of-bounds access issue was addressed with improved bounds checking. This issue is fixed in iOS 17.5 and iPadOS 17.5, macOS Sonoma 14.5, tvOS 17.5, visionOS 1.2. A remote attacker may be able to cause unexpected app termination or arbitrary code execution.

Patch / fix

  • Apple iOS and iPadOS 17.5
  • Apple macOS 14.5
  • Apple tvOS 17.5
  • Apple visionOS 1.2
  • apple ios 17.5
  • apple ipados 17.5

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
total
Assessed
2 y ago

Exploit prediction

1.83% chance of exploitation in the next 30 days, higher than 78% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 7.1 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CNA 3.1 7.1 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L

Affected products

  • Apple iOS and iPadOS
  • Apple macOS
  • Apple tvOS
  • Apple visionOS
  • apple ios
  • apple ipados

Classification

Weakness
  • CWE-94 Improper Control of Generation of Code
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

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.