Out-of-bounds Read in F5 nginx Gateway Fabric
CVE-2026-60065
When NGINX Plus is configured to use the Message Queuing Telemetry Transport (MQTT) filter module (ngx_stream_mqtt_filter_module), unauthenticated attackers can send requests with conditions beyond the attacker's control to cause a heap buffer over-read in the NGINX worker process, leading to a restart. Impact: This vulnerability may allow remote unauthenticated attackers to have limited control to restart the NGINX worker process. There is no control plane exposure; this is a data plane issue only. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.004 (37.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 38th percentile — 37.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.002
Affected products
- F5 nginx Gateway Fabric
- F5 nginx Ingress Controller — versions 4.0.0, 4.0.1
- F5 nginx Plus — versions 37.0.0.1, R36, R33
- F5 nginx Plus — versions r36
- F5 Waf
Weakness classification (CWE)
References
- my.f5.com/manage/s/article/K000162101 (vendor-advisory, patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-60065?
- CVE-2026-60065 is a low-severity vulnerability in F5 nginx Gateway Fabric, classified under Out-of-bounds Read. CVSS score: 3.7/10. Published 2026-07-15.
- How severe is CVE-2026-60065?
- Low severity. CVSS v3 base score is 3.7 out of 10.