Cyber Resilience

CVE-2025-3485

High

Published: 06 June 2025

Published
06 June 2025
Modified
18 August 2025
KEV Added
Patch
CVSS Score v3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0310 87.1th percentile
Risk Priority 19 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-3485 is a high-severity Path Traversal (CWE-22) vulnerability in Alltena Allegra. Its CVSS base score is 8.8 (High).

Operationally, ranked in the top 12.9% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

Deeper analysis

CVE-2025-3485 is a directory traversal vulnerability in the extractFileFromZip method of Allegra that leads to remote code execution. The flaw stems from insufficient validation of user-supplied paths before they are used in file operations, allowing an attacker to influence file extraction behavior on affected installations.

An authenticated remote attacker can supply a crafted path to the vulnerable method and achieve arbitrary code execution in the context of the running process. The issue carries a CVSS 3.1 score of 8.8 and is tracked as CWE-22; exploitation requires valid credentials but no user interaction.

The referenced Zero Day Initiative advisory ZDI-25-254 and Alltena release notes for version 8.1.2 indicate that the vulnerability is addressed by applying the 8.1.2 update. The associated EPSS score has remained flat at 0.0310 with no material increase since disclosure.

EU & UK References

Vulnerability details

Allegra extractFileFromZip Directory Traversal Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Allegra. Authentication is required to exploit this vulnerability. The specific flaw exists within the implementation of the extractFileFromZip method.…

more

The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-26524.

CWE(s)

Related Threats

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

Affected Assets

alltena
allegra
≤ 8.1.2

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-22

Validates pathnames and filenames to prevent traversal outside intended directories.

References