CVE-2022-3295Public exploitNetwork attack vector

Service interruption via unbounded user-root input

Published Sep 26, 2022 · Updated May 21, 2025

Resource exhaustion in Rdiffweb before 2.4.8 allows remote attackers to interrupt the service through an oversized user-root value. The UserForm user_root field accepts arbitrarily long strings without a length validator, allowing excessive resource consumption. No authentication or user interaction is required, and no data access or modification impact is reported.

CVSS severity8.7
High
EPSS probability1.01%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource exhaustion in Rdiffweb before 2.4.8 allows remote attackers to interrupt the service through an oversized user-root value. The UserForm user_root field accepts arbitrarily long strings without a length validator, allowing excessive resource consumption. No authentication or user interaction is required, and no data access or modification impact is reported.

The record

CVE
CVE-2022-3295
Published
Sep 26, 2022
Updated
May 21, 2025
Vendor
IKUS Software
Product
Rdiffweb
Classifications
CWE-770, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 26, 2022CVE publishedPublication date reported by the CVE source.
  2. May 21, 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 <2.4.8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IKUS Software · Rdiffwebversion=unspecified <2.4.8

Published CVSS scores

5.3@huntrdevCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
8.7GitHub Advisory DatabaseCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
7.5GitHub Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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.

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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-770Allocation of Resources Without Limits or Throttling
T1499.004Application or System Exploitation

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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