CVE-2023-43768

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-03-27 · updated 2026-06-17
Weakness: CWE-770

Description

An issue was discovered in Couchbase Server 6.6.x through 7.2.0, before 7.1.5 and 7.2.1. Unauthenticated users may cause memcached to run out of memory via large commands.

Affected products

Couchbase Server: from 6.6.0 before 7.1.5; 7.2.0 — fixed in 7.1.5

How to fix

Upgrade to a fixed version: Couchbase Server 7.1.5. Check the vendor advisory for mitigations.

References

https://docs.couchbase.com/server/current/release-notes/relnotes.html
https://forums.couchbase.com/tags/security
https://www.couchbase.com/alerts/
https://www.couchbase.com/downloads
https://docs.couchbase.com/server/current/release-notes/relnotes.html
https://forums.couchbase.com/tags/security
https://www.couchbase.com/alerts/
https://www.couchbase.com/downloads

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