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Fencer Vulns
medium 5.5

CVE-2023-27955 json

The issue was addressed with improved checks.

published 2023-05-08 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-31681

cvss
5.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 14%
public exploits
0
none known

Summary

The issue was addressed with improved checks. This issue is fixed in macOS Ventura 13.3, iOS 16.4 and iPadOS 16.4, macOS Monterey 12.6.4, tvOS 16.4, macOS Big Sur 11.7.5. An app may be able to read arbitrary files.

Patch / fix

  • Apple macOS 11.7, 12.6, 13.3
  • Apple iOS and iPadOS 16.4
  • Apple tvOS 16.4

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
21 mo ago

Exploit prediction

0.24% chance of exploitation in the next 30 days, higher than 14% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CNA 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Affected products

  • Apple macOS
  • Apple iOS and iPadOS
  • Apple tvOS

Classification

Weakness
  • CWE-120 Buffer Copy without Checking Size of Input

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.