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CVE-2023-25155

Integer Overflow in several Redis commands can lead to denial of service.

MEDIUM
6.5
CVSS Score
Published: March 2, 2023 at 03:01 AM UTC
Updated: June 17, 2026 at 05:40 AM UTC
1 product affected across 1 vendorRedis

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.9%
SSVC
No known exploit

Description

Redis is an in-memory database that persists on disk. Authenticated users issuing specially crafted `SRANDMEMBER`, `ZRANDMEMBER`, and `HRANDFIELD` commands can trigger an integer overflow, resulting in a runtime assertion and termination of the Redis server process. This problem affects all Redis versions. Patches were released in Redis version(s) 6.0.18, 6.2.11 and 7.0.9.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Redis· Redis
95%
v < 6.0.18v < 6.2.11v < 7.0.96.2.0 ≤ v < 6.2.117.0.0 ≤ v < 7.0.9
Affected range stops below 6.0.18, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.2.11, so it looks safe — our inference, not a vendor statement
Affected range stops below 7.0.9, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (5)

x_refsource_MISCPatch
Source: [email protected]
https://github.com/redis/redis/commit/2a2a582e7cd99ba3b531336b8bd41df2b566e619
x_refsource_MISCRelease Notes
Source: [email protected]
https://github.com/redis/redis/releases/tag/6.0.18
x_refsource_MISCRelease Notes
Source: [email protected]
https://github.com/redis/redis/releases/tag/6.2.11
x_refsource_MISCRelease Notes
Source: [email protected]
https://github.com/redis/redis/releases/tag/7.0.9
x_refsource_CONFIRMVendor Advisory
Source: [email protected]
https://github.com/redis/redis/security/advisories/GHSA-x2r7-j9vw-3w83

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.5MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-190

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