VDB
CVE-2025-36557
CVE-2025-36557
PUBLISHED
CVSS 7.5 HIGH
BIG-IP HTTP vulnerability
Reported by f5 · Published May 7, 2025
When an HTTP profile with the Enforce RFC Compliance option is configured on a virtual server, undisclosed requests can cause the Traffic Management Microkernel (TMM) to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| big-ip_application_acceleration_manager | f5 | 17.1.2, 16.1.5 |
| big-ip_global_traffic_manager | f5 | 17.1.2, 16.1.5 |
| big-ip_next_service_proxy_for_kubernetes | f5 | 1.9.2, 1.7.9 |
| big-ip_link_controller | f5 | 17.1.2, 16.1.5 |
| big-ip_fraud_protection_service | f5 | 17.1.2, 16.1.5 |
| big-ip_policy_enforcement_manager | f5 | 17.1.2, 16.1.5 |
| big-ip_analytics | f5 | 17.1.2, 16.1.5 |
| big-ip_access_policy_manager | f5 | 17.1.2, 16.1.5 |
| BIG-IP | F5 | 17.1.2, 16.1.5 |
| big-ip_advanced_firewall_manager | f5 | 17.1.2, 16.1.5 |
| big-ip_next_cloud-native_network_functions | f5 | 1.4.0 |
| big-ip_local_traffic_manager | f5 | 17.1.2, 16.1.5 |
4 more packages have a fixed version. See every fix in Lookup.
Risk scores
CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
| Vendor | Product | Versions |
|---|---|---|
| F5 | BIG-IP | 17.5.0, 17.1.0, 16.1.0 |
| F5 | BIG-IP Next SPK | 1.8.0, 1.7.0 |
| F5 | BIG-IP Next CNF | 2.0.0, 1.1.0 |
| F5 | BIG-IP | 17.1.0, 16.1.0, 15.1.0 |
| F5 | BIG-IP Next SPK | 1.7.0, 1.8.0 |
| F5 | BIG-IP Next CNF | 2.0.0, 1.1.0 |
Timeline
- May 7, 2025 Coalition ESS Score (11 in total, the first dated here)
- May 7, 2025 CVE Published
- May 8, 2025 EPSS Score (30 in total, the first dated here)
- May 19, 2025 CVE Updated
- Mar 17, 2026 Security Advisory (3 in total, the first dated here)
Query this with the API
The same record, from the CLI:
vulnetix vdb vuln CVE-2025-36557
vulnetix vdb fixes CVE-2025-36557Or with curl, using the org id and key from your account page:
curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
"https://api.vdb.vulnetix.com/v2/vuln/CVE-2025-36557/fixes/registry"The Community plan is free and allows 50 queries a day. Get a free API key · API quickstart