CVE-2025-59031Network attack vector

Authenticated local file disclosure via OOXML symlinks

Published Mar 27, 2026 · Updated Mar 27, 2026

Information exposure in Open-Xchange Dovecot Pro 2.3.0 and earlier allows remote authenticated users to read unintended local files. The decode2text.sh FTS attachment converter extracts crafted OOXML archives without preventing symlink traversal, so indexing follows archive links into files readable by the service. Exposure requires FTS to use the example script and a user able to submit the document and query the resulting full-text index; confidentiality is the only reported impact.

CVSS severity4.3
Medium
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information exposure in Open-Xchange Dovecot Pro 2.3.0 and earlier allows remote authenticated users to read unintended local files. The decode2text.sh FTS attachment converter extracts crafted OOXML archives without preventing symlink traversal, so indexing follows archive links into files readable by the service. Exposure requires FTS to use the example script and a user able to submit the document and query the resulting full-text index; confidentiality is the only reported impact.

The record

CVE
CVE-2025-59031
Published
Mar 27, 2026
Updated
Mar 27, 2026
Vendor
Open-Xchange GmbH
Product
Dovecot Pro
Classifications
CWE-200, T1005
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 27, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 27, 2026Record 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=0 <=2.3.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Open-Xchange GmbH · Dovecot Proversion=0 <=2.3.0

Published CVSS scores

4.3Open-XchangeCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1005Data from Local System

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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