Cyber Resilience

CVE-2023-27931

Medium

Published: 08 May 2023

Published
08 May 2023
Modified
29 January 2025
KEV Added
Patch
CVSS Score v3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
EPSS Score 0.0012 30.1th percentile
Risk Priority 11 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-27931 is a medium-severity Observable Discrepancy (CWE-203) vulnerability in Apple Ipados. Its CVSS base score is 5.5 (Medium).

Operationally, ranked at the 30.1th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

This issue was addressed by removing the vulnerable code. This issue is fixed in macOS Ventura 13.3, macOS Monterey 12.6.3, iOS 16.4 and iPadOS 16.4, macOS Big Sur 11.7.3, tvOS 16.4, watchOS 9.4. An app may be able to access…

more

user-sensitive data.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

apple
ipados
≤ 16.4
apple
iphone os
≤ 16.4
apple
macos
≤ 13.3
apple
tvos
≤ 16.4
apple
watchos
≤ 9.4

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-203

Misdirection can normalize or falsify responses to eliminate observable discrepancies that aid reconnaissance.

addresses: CWE-203

Observable discrepancies in system behavior can be modulated to create covert storage or timing channels; the required analysis detects and constrains such avenues.

addresses: CWE-203

Prevents attackers from using observable differences in error responses to infer internal system details or state.

References