Cyber Resilience

CVE-2026-52703

Critical

Published: 15 June 2026

Published
15 June 2026
Modified
17 June 2026
KEV Added
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Patch
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CVSS Score v3.1 9.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
EPSS Score 0.0034 25.9th percentile
Risk Priority 70 floored blend · peak EPSS

Summary

CVE-2026-52703 is a critical-severity Path Traversal: '.../...//' (CWE-35) vulnerability. Its CVSS base score is 9.6 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 25.9th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Unauthenticated Path Traversal in FastDup <= 2.7.2 versions.

CWE(s)
CWE-35

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
T1005 Data from Local System Collection
Adversaries may search local system sources, such as file systems, configuration files, local databases, virtual machine files, or process memory, to find files of interest and sensitive data prior to Exfiltration.
attack.mitre.org →
Why these techniques?

Unauthenticated path traversal in a public-facing web component directly enables remote exploitation (T1190) and arbitrary local file access (T1005).

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

Affected Assets

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References