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Vulnerability record · CVE-2023-28724 · published 3 May 2023

CVE-2023-28724: F5 nginx api connectivity manager incorrect default permissions vulnerability

F5 · Nginx Api Connectivity Manager

NGINX Management Suite default file permissions are set such that an authenticated attacker may be able to modify sensitive files on NGINX Instance Manager and NGINX API Connectivity Manager.   Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

7.1 CVSS 3.1 High EPSS 0.17% · top 94.3% CWE-276 · Incorrect default permissions
7.1CVSS 3.1 base score
0.17%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

NGINX Management Suite default file permissions are set such that an authenticated attacker may be able to modify sensitive files on NGINX Instance Manager and NGINX API Connectivity Manager.   Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://my.f5.com/manage/s/article/K000133233 Vendor Advisory
https://security.netapp.com/advisory/ntap-20230609-0006/ Third Party Advisory
https://my.f5.com/manage/s/article/K000133233 Vendor Advisory
https://security.netapp.com/advisory/ntap-20230609-0006/ Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.2CVE-2026-42055F5 dos heap-based buffer overflow vulnerabilityNGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_proxy_v2_module and ngx_http_grpc_module modules. This vulnerability exists whe…EPSS 2.4%9.2CVE-2026-42530F5 nginx gateway fabric use after free vulnerabilityNGINX Open Source has a vulnerability in the ngx_http_v3_module module. When NGINX Open Source is configured to use the HTTP/3 QUIC module, a remote …EPSS 1.1%9.2CVE-2026-9256F5 nginx open source heap-based buffer overflow vulnerabilityNGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_rewrite_module module. This vulnerability exists when a rewrite directive uses …EPSS 2.7%9.2CVE-2026-42945NGINX rewrite module heap buffer overflow via crafted HTTP requestsNGINX Plus and NGINX Open Source contain a heap buffer overflow in the ngx_http_rewrite_module when a rewrite directive is followed by another rewrit…EPSS 3.4%analysed8.8CVE-2026-60005F5 nginx gateway fabric use of uninitialized resource vulnerabilityNGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_slice_module module. When the slice directive and unnamed regex captures are co…EPSS 0.53%8.3CVE-2026-42946F5 dos vulnerabilityA vulnerability exists in the ngx_http_scgi_module and ngx_http_uwsgi_module modules that may result in excessive memory allocation or an over-read o…EPSS 0.49%8.2CVE-2026-1642F5 nginx gateway fabric insufficient verification of data authenticity vulnerabilityA vulnerability exists in NGINX OSS and NGINX Plus when configured to proxy to upstream Transport Layer Security (TLS) servers. An attacker with a ma…EPSS 0.36%8.1CVE-2023-28656Netapp cloud backup insecure direct object reference vulnerabilityNGINX Management Suite may allow an authenticated attacker to gain access to configuration objects outside of their assigned environment.   Note: Sof…EPSS 0.53%

Source: NIST National Vulnerability Database (record CVE-2023-28724), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.