CVE-2023-28425

Authenticated server crash via duplicate MSETNX key

Published Mar 20, 2023 · Updated Feb 25, 2025

Denial of service in Redis 7.0.8 through 7.0.9 allows remote authenticated users to terminate the server via a crafted MSETNX command. In msetGenericCommand, repeating a nonexistent key causes setKey to receive SETKEY_DOESNT_EXIST on the second write, violating an assertion. The command must be authorized, and successful exploitation terminates the Redis process rather than exposing or modifying data.

CVSS severity5.5
Medium
EPSS probability54.98%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Redis 7.0.8 through 7.0.9 allows remote authenticated users to terminate the server via a crafted MSETNX command. In msetGenericCommand, repeating a nonexistent key causes setKey to receive SETKEY_DOESNT_EXIST on the second write, violating an assertion. The command must be authorized, and successful exploitation terminates the Redis process rather than exposing or modifying data.

The record

CVE
CVE-2023-28425
Published
Mar 20, 2023
Updated
Feb 25, 2025
Vendor
Redis
Product
Redis
Classifications
CWE-77, CWE-617, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 20, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 25, 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=>= 7.0.8, < 7.0.10

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Redis · Redisversion=>= 7.0.8, < 7.0.10

Published CVSS scores

5.5GitHub, Inc.CVSS:3.1/AV:L/AC:L/PR:L/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
CWE-617Reachable Assertion
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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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