Raw vector
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:NSummary
CVE-2024-27821 is a medium-severity Path Traversal (CWE-22) vulnerability in Apple Ipados. Its CVSS base score is 4.7 (Medium).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 43% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified map to AC-3 (Access Enforcement) and SI-10 (Information Input Validation) — see the control section below for these in your framework.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
A path handling issue addressed through improved input validation affects the Shortcuts feature on Apple platforms. The vulnerability, tracked as CVE-2024-27821 and assigned CWE-22, impacts iOS 17.5 and iPadOS 17.5, macOS Sonoma 14.5, and watchOS 10.5. It allows a shortcut to output sensitive user data without explicit consent, producing a CVSS 4.7 vector that requires local access, high attack complexity, and user interaction.
An attacker can supply a malicious shortcut that an unsuspecting user runs on an affected device. Successful exploitation results in unauthorized disclosure of sensitive information while leaving integrity and availability untouched.
Apple security advisories for the May 2024 updates state that the issue is resolved in iOS 17.5, iPadOS 17.5, macOS Sonoma 14.5, and watchOS 10.5; users should install the patches to prevent the unintended data exposure.
The EPSS score rose from a low baseline to a peak of 0.0555 on 2026-02-10 before receding to its current value of 0.0236, indicating a measurable increase in exploitation interest after public disclosure.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2024-25014
Vulnerability Data
A path handling issue was addressed with improved validation. This issue is fixed in iOS 17.5 and iPadOS 17.5, macOS Sonoma 14.5, watchOS 10.5. A shortcut may output sensitive user data without consent.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Control response
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V5.3.2
Mitigating Controls (NIST 800-53 r5) AI
Enforces the intended directory access authorizations that path traversal would otherwise bypass.
Input validation directly neutralizes special path elements before pathname construction occurs.
Least privilege reduces the impact of any unauthorized file access obtained via traversal.
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
Patching/maintenance can remediate known path-traversal flaws in deployed software (partial prevention of exploitability) but does nothing to stop the coding defect from being introduced in the first place.
PR.AA-05 defines and reviews access policies but does not address code-level pathname neutralization, so neither direction prevents CWE-22.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.
Security testing in development catches path traversal via static/dynamic analysis.
Secure SDLC mandates input validation and path sanitization that directly prevent path traversal.
Application security requirements include rules for safe file handling and canonicalization.
Secure architecture principles require least-privilege file access and directory isolation.
Secure coding standards explicitly forbid unsafe path construction and mandate safe APIs.
Information access restriction limits which files an application may read or write.