How severe is CVE-2023-49338?

CVE-2023-49338 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-2023-49338 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-49338?

CVE-2023-49338 affects Couchbase Couchbase Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-49338?

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.

Does CVE-2023-49338 have an EU (EUVD) identifier?

Yes. CVE-2023-49338 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-53321.

When was CVE-2023-49338 published?

CVE-2023-49338 was published on 2024-02-28 and last updated on 2026-06-17.

CVE-2023-49338

CVE-2023-49338 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-276.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (45th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-53321
Weakness: CWE-276
Affected product: Couchbase Couchbase Server
Published: 2024-02-28
Last modified: 2026-06-17

Description

Couchbase Server 7.1.x and 7.2.x before 7.2.4 does not require authentication for the /admin/stats and /admin/vitals endpoints on TCP port 8093 of localhost.

Frequently asked questions

What is CVE-2023-49338?: Couchbase Server 7.1.x and 7.2.x before 7.2.4 does not require authentication for the /admin/stats and /admin/vitals endpoints on TCP port 8093 of localhost.
How severe is CVE-2023-49338?: CVE-2023-49338 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-2023-49338 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-49338?: CVE-2023-49338 affects Couchbase Couchbase Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-49338?: 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.
Does CVE-2023-49338 have an EU (EUVD) identifier?: Yes. CVE-2023-49338 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-53321.
When was CVE-2023-49338 published?: CVE-2023-49338 was published on 2024-02-28 and last updated on 2026-06-17.

References

Affected products (1)

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

More vulnerabilities in Couchbase Couchbase Server

CVE-2023-49931 — Critical (CVSS 9.8): An issue was discovered in Couchbase Server before 7.2.4. SQL++ cURL calls to /diag/eval are not sufficiently…
CVE-2023-49930 — Critical (CVSS 9.8): An issue was discovered in Couchbase Server before 7.2.4. cURL calls to /diag/eval are not sufficiently restricted.
CVE-2021-35943 — Critical (CVSS 9.8): Couchbase Server 6.5.x and 6.6.x through 6.6.2 has Incorrect Access Control. Externally managed users are not prevented…
CVE-2020-24719 — Critical (CVSS 9.8): Exposed Erlang Cookie could lead to Remote Command Execution (RCE) attack. Communication between Erlang nodes is done…
CVE-2020-9039 — Critical (CVSS 9.8): Couchbase Server 4.0.0, 4.1.0, 4.1.1, 4.5.0, 4.5.1, 4.6.0 through 4.6.5, 5.0.0, 5.1.1, 5.5.0 and 5.5.1 have Insecure…
CVE-2019-11495 — Critical (CVSS 9.8): In Couchbase Server 5.1.1, the cookie used for intra-node communication was not generated securely. Couchbase Server…

All CVEs affecting Couchbase Couchbase Server →

Other CWE-276 (Incorrect Default Permissions) vulnerabilities

CVE-2022-42150 — Critical (CVSS 10.0): TinyLab linux-lab v1.1-rc1 and cloud-labv0.8-rc2, v1.1-rc1 are vulnerable to insecure permissions. The default…
CVE-2020-29492 — Critical (CVSS 10.0): Dell Wyse ThinOS 8.6 and prior versions contain an insecure default configuration vulnerability. A remote…
CVE-2020-29491 — Critical (CVSS 10.0): Dell Wyse ThinOS 8.6 and prior versions contain an insecure default configuration vulnerability. A remote…
CVE-2025-40585 — Critical (CVSS 9.9): A vulnerability has been identified in Energy Services (All versions with G5DFR). Affected solutions using G5DFR…
CVE-2019-19896 — Critical (CVSS 9.9): In IXP EasyInstall 6.2.13723, there is Remote Code Execution via weak permissions on the Engine Service share. The…
CVE-2020-37129 — Critical (CVSS 9.8): Memu Play 7.1.3 contains an insecure folder permissions vulnerability that allows low-privileged users to modify the…

Browse all CWE-276 (Incorrect Default Permissions) vulnerabilities →