CVE-2022-3326Public exploitNetwork attack vector

Account compromise via all-space password acceptance

Published Sep 28, 2022 · Updated May 20, 2025

Weak password enforcement in IKUS Software Rdiffweb before 2.4.9 allows remote authenticated users to set all-space passwords. The set_password path rejects only empty input and applies an impossible chained length comparison, then hashes the value without measuring its strength. An existing account and access to its password-change flow are required; the resulting weak credential lowers resistance to account compromise.

CVSS severity4.3
Medium
EPSS probability0.61%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Weak password enforcement in IKUS Software Rdiffweb before 2.4.9 allows remote authenticated users to set all-space passwords. The set_password path rejects only empty input and applies an impossible chained length comparison, then hashes the value without measuring its strength. An existing account and access to its password-change flow are required; the resulting weak credential lowers resistance to account compromise.

The record

CVE
CVE-2022-3326
Published
Sep 28, 2022
Updated
May 20, 2025
Vendor
IKUS Software
Product
Rdiffweb
Classifications
CWE-521
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 28, 2022CVE publishedPublication date reported by the CVE source.
  2. May 20, 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=unspecified <2.4.9

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

IKUS Software · Rdiffwebversion=unspecified <2.4.9

Published CVSS scores

5.3GitHubCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
4.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
5.4huntr.devCVSS:3.0/AV:N/AC:L/PR:N/UI:R/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-521Weak Password Requirements

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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