How severe is CVE-2023-36667?

CVE-2023-36667 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2023-36667 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-36667?

CVE-2023-36667 primarily affects Couchbase Couchbase Server. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-36667?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-36667 published?

CVE-2023-36667 was published on 2023-11-08 and last updated on 2026-06-17.

CVE-2023-36667

CVE-2023-36667 is a high-severity vulnerability in Couchbase Couchbase Server with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Couchbase Couchbase Server
Published: 2023-11-08
Last modified: 2026-06-17

Description

Couchbase Server 7.1.4 before 7.1.5 and 7.2.0 before 7.2.1 allows Directory Traversal.

Frequently asked questions

What is CVE-2023-36667?: Couchbase Server 7.1.4 before 7.1.5 and 7.2.0 before 7.2.1 allows Directory Traversal.
How severe is CVE-2023-36667?: CVE-2023-36667 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2023-36667 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-36667?: CVE-2023-36667 primarily affects Couchbase Couchbase Server. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-36667?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-36667 published?: CVE-2023-36667 was published on 2023-11-08 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:couchbase:couchbase_server:*:*:*:*:*:*:*:*
cpe:2.3:a:couchbase:couchbase_server:7.2.0:*:*:*:*:*:*:*

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