CVE-2023-22458Public exploit

Server crash via unbounded random-member counts

Published Jan 20, 2023 · Updated Mar 10, 2025

Integer overflow in Redis 6.2 through 6.2.8 and 7.0 through 7.0.7 allows local users to crash the server with crafted commands. The hrandfieldCommand and zrandmemberCommand handlers fail to bound signed count values before protocol-related multiplication, causing overflow and an assertion failure. The user must have authenticated command access; successful exploitation terminates the Redis process without reported data disclosure or modification.

CVSS severity5.5
Medium
EPSS probability71.98%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Integer overflow in Redis 6.2 through 6.2.8 and 7.0 through 7.0.7 allows local users to crash the server with crafted commands. The hrandfieldCommand and zrandmemberCommand handlers fail to bound signed count values before protocol-related multiplication, causing overflow and an assertion failure. The user must have authenticated command access; successful exploitation terminates the Redis process without reported data disclosure or modification.

The record

CVE
CVE-2023-22458
Published
Jan 20, 2023
Updated
Mar 10, 2025
Vendor
Redis
Product
Redis
Classifications
CWE-190, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 20, 2023CVE publishedPublication date reported by the CVE source.
  2. Mar 10, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 6.2, < 6.2.9
  2. Affected versionversion=>= 7.0, < 7.0.8

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Redis · Redisversion=>= 6.2, < 6.2.9; version=>= 7.0, < 7.0.8

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 exploitPublished

Weakness, pattern, technique

CWE-190Integer Overflow or Wraparound
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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