CVE-2025-32352Public exploitNetwork attack vector

Authentication bypass via loose MD5 hash comparison

Published Apr 5, 2025 · Updated Apr 7, 2025

Type confusion in ZendTo before 5.04-7 allows remote attackers to bypass authentication for accounts retaining legacy MD5 password hashes. NSSAuthenticator hashes the supplied password with MD5 and loosely compares it to the stored value, causing numeric-looking 0e hashes to compare as zero. Exploitation requires a known local username with such a stored hash and grants that user's application access.

CVSS severity4.8
Medium
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Type confusion in ZendTo before 5.04-7 allows remote attackers to bypass authentication for accounts retaining legacy MD5 password hashes. NSSAuthenticator hashes the supplied password with MD5 and loosely compares it to the stored value, causing numeric-looking 0e hashes to compare as zero. Exploitation requires a known local username with such a stored hash and grants that user's application access.

The record

CVE
CVE-2025-32352
Published
Apr 5, 2025
Updated
Apr 7, 2025
Vendor
ZendTo
Product
ZendTo
Classifications
CWE-843, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 5, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 7, 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=0 <5.04-7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ZendTo · ZendToversion=0 <5.04-7

Published CVSS scores

4.8MITRECVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-843Access of Resource Using Incompatible Type ('Type Confusion')
T1190Exploit Public-Facing Application

Public exploit references

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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