CVE-2023-45873: An issue was discovered in Couchbase Server through 7.2.2

Q: How do I fix CVE-2023-45873?

couchbase server: upgrade to 7.2.3. Exact commands for each OS are on this page.

Q: Is CVE-2023-45873 being exploited?

CVE-2023-45873 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2023-45873 affect?

CVE-2023-45873 affects couchbase server. Severity is medium (CVSS 6.5). An issue was discovered in Couchbase Server through 7.2.2. A data reader may cause a denial of service (application exist) because of the OOM killer.

Q: How urgent is CVE-2023-45873?

Priority 36/100. No elevated risk signals yet.

Routine

MEDIUM 6.5UPGRADE

CVE-2023-45873 is a medium-severity flaw (CVSS 6.5) affecting couchbase server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered in Couchbase Server through 7.2.2. A data reader may cause a denial of service (application exist) because of the OOM killer.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.7% (top 48%)
CISA exploited list	No
Weakness	CWE-770
Published	2024-02-28
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: couchbase

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-02-28 22:15 UTCPublished CVE record published
2026-06-17 06:29 UTCUpdated Record last modified

couchbase couchbase server UPGRADE

Affected: < 7.2.3

Fixed in: 7.2.3

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy couchbase-server || rpm -q couchbase-server || couchbase-server --version

2. UPGRADE to 7.2.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade couchbase-server

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade couchbase-server

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-45873?

couchbase server: upgrade to 7.2.3. Exact commands for each OS are on this page.

Is CVE-2023-45873 being exploited?

CVE-2023-45873 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-45873 affect?

CVE-2023-45873 affects couchbase server. Severity is medium (CVSS 6.5). An issue was discovered in Couchbase Server through 7.2.2. A data reader may cause a denial of service (application exist) because of the OOM killer.

How urgent is CVE-2023-45873?

Priority 36/100. No elevated risk signals yet.

Related CVEs

CVE-2025-46619 HIGH 7.6 UPGRADE A security issue has been discovered in Couchbase Server before 7.6.4 and fixed in v.7.6.4 and v.7.2.7 for Win
CVE-2024-56178 MEDIUM 6.5 UPGRADE An issue was discovered in Couchbase Server 7.6.x through 7.6.3
CVE-2024-37034 MEDIUM 5.9 UPGRADE An issue was discovered in Couchbase Server before 7.2.5 and 7.6.0 before 7.6.1
CVE-2024-25673 MEDIUM 6.1 UPGRADE Couchbase Server 7.6.x before 7.6.2, 7.2.x before 7.2.6, and all earlier versions allows HTTP Host header inje
CVE-2024-23302 HIGH 7.5 UPGRADE Couchbase Server before 7.2.4 has a private key leak in goxdcr.log.

References

← Back to latest CVEs