CVE-2025-3486Network attack vector

Authenticated code execution via ZIP path traversal

Published May 22, 2025 · Updated May 22, 2025

Path traversal in Alltena GmbH Allegra before 8.1.2 allows remote authenticated users to execute arbitrary code via a crafted ZIP entry. The isZipEntryValide method fails to validate a user-supplied path before file operations, allowing extraction outside the intended directory. High-privilege authentication is required, and successful exploitation executes code in the LOCAL SERVICE context.

CVSS severity8.8
High
EPSS probability1.52%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in Alltena GmbH Allegra before 8.1.2 allows remote authenticated users to execute arbitrary code via a crafted ZIP entry. The isZipEntryValide method fails to validate a user-supplied path before file operations, allowing extraction outside the intended directory. High-privilege authentication is required, and successful exploitation executes code in the LOCAL SERVICE context.

The record

CVE
CVE-2025-3486
Published
May 22, 2025
Updated
May 22, 2025
Vendor
Alltena GmbH
Product
Allegra
Classifications
CWE-22, T1190
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. May 22, 2025CVE publishedPublication date reported by the CVE source.
  2. May 22, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=8.1.1.49

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Alltena GmbH · Allegraversion=8.1.1.49

Published CVSS scores

8.8NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.2Zero Day InitiativeCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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