Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NSummary
CVE-2023-28127 is a high-severity Path Traversal (CWE-22) vulnerability in Ivanti Avalanche. Its CVSS base score is 7.5 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 1.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
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 traversal vulnerability tracked as CVE-2023-28127 affects Ivanti Avalanche versions 6.3.x and earlier. The flaw, assigned CWE-22, permits unauthorized access to files outside intended directories and carries a CVSS 3.1 score of 7.5 reflecting network attack vector, low complexity, and no required credentials or user interaction, resulting in high confidentiality impact with no integrity or availability effects.
Unauthenticated remote attackers can send specially crafted requests to the getLogFile endpoint to traverse directories and retrieve sensitive files, achieving information disclosure without any prior authentication or user assistance.
The referenced Ivanti support article ZDI-CAN-17769 describes the directory traversal behavior in Avalanche but supplies no explicit mitigation steps within the provided source material.
EPSS for the CVE rose from a low baseline to a peak of 0.3114 on 2026-02-03 before receding to the current value of 0.0599, indicating a period of increased exploitation interest after public disclosure.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-31838
Vulnerability Data
A path traversal vulnerability exists in Avalanche version 6.3.x and below that when exploited could result in possible information disclosure.
- 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
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.
Validates pathnames and filenames to prevent traversal outside intended directories.
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.