CVE-2025-3486

Name: CVE-2025-3486
Creator: NVD / NIST
Published: 2025-05-22T01:15:53.61+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.56%

Last modified Jun 17, 2026

CVE-2025-3486 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Allegra isZipEntryValide Directory Traversal Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Allegra. EPSS estimates a 1.56% chance of exploitation in the next 30 days.

Description

Allegra isZipEntryValide 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 isZipEntryValide method. 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 LOCAL SERVICE. Was ZDI-CAN-25730.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.56%

72.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-22

Affected Software

Vendor	Product	Versions
Alltena	Allegra	< 8.1.2

References

https://alltena.com/en/resources/release-notes/release-notes-for-release-8-1-2Release Notes, Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-25-255/Third Party Advisory

Timeline

Published: May 22, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-3486?

How severe is CVE-2025-3486?

CVE-2025-3486 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.56% probability of exploitation in the next 30 days.

How do I fix CVE-2025-3486?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-3486?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST