CVE-2025-26413Network attack vector

Remote server crash via negative SETRANGE offset

Published Apr 22, 2025 · Updated May 12, 2025

Improper input validation in Apache Kvrocks 2.11.1 and earlier allows remote attackers to crash the server via a negative SETRANGE offset. The SETRANGE command accepts a negative integer and uses it as a string index, placing the index outside the valid range and terminating the process. An exposed instance without a required password is reachable by unauthenticated network clients, and the reported consequence is a service interrupt without data disclosure or alteration.

CVSS severity7.5
High
EPSS probability0.70%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in Apache Kvrocks 2.11.1 and earlier allows remote attackers to crash the server via a negative SETRANGE offset. The SETRANGE command accepts a negative integer and uses it as a string index, placing the index outside the valid range and terminating the process. An exposed instance without a required password is reachable by unauthenticated network clients, and the reported consequence is a service interrupt without data disclosure or alteration.

The record

CVE
CVE-2025-26413
Published
Apr 22, 2025
Updated
May 12, 2025
Vendor
The Apache Software Foundation
Product
Apache Kvrocks
Classifications
CWE-20, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 22, 2025CVE publishedPublication date reported by the CVE source.
  2. May 12, 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?

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  1. Affected versionversion=0 <=2.11.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Apache Software Foundation · Apache Kvrocksversion=0 <=2.11.1

Published CVSS scores

7.5CISA-ADPCVSS: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 exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
T1499.004Endpoint Denial of Service: Application or System Exploitation

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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