The Traffic Management Microkernel (TMM) in F5 BIG-IP LTM, AAM, AFM, Analytics, APM, ASM…
Priority LOW 36CWE-19Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA.
Summary
The Traffic Management Microkernel (TMM) in F5 BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, GTM, Link Controller, and BIG-IP PEM before 11.4.1 HF10, 11.5.x before 11.5.4, and 11.6.x before 11.6.0 HF6 and BIG-IP PSM before 11.4.1 HF10 does not properly handle TCP options, which allows remote attackers to cause a denial of service via unspecified vectors, related to the tm.minpathmtu database variable.
Why it matters now
EPSS 0.01765 78th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 28
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:f5:big-ip_access_policy_manager:11.4.1:*:*:*:*:*:*:* | 11.4.1 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_access_policy_manager:11.5.3:*:*:*:*:*:*:* | 11.5.3 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_access_policy_manager:11.6.0:*:*:*:*:*:*:* | 11.6.0 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_advanced_firewall_manager:11.4.1:*:*:*:*:*:*:* | 11.4.1 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_advanced_firewall_manager:11.5.3:*:*:*:*:*:*:* | 11.5.3 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_advanced_firewall_manager:11.6.0:*:*:*:*:*:*:* | 11.6.0 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_analytics:11.4.1:*:*:*:*:*:*:* | 11.4.1 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_analytics:11.5.3:*:*:*:*:*:*:* | 11.5.3 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_analytics:11.6.0:*:*:*:*:*:*:* | 11.6.0 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_application_acceleration_manager:11.4.1:*:*:*:*:*:*:* | 11.4.1 | Vulnerable | F5 |
- cpe:2.3:a:f5:big-ip_access_policy_manager:11.4.1:*:*:*:*:*:*:* Versions 11.4.1 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_access_policy_manager:11.5.3:*:*:*:*:*:*:* Versions 11.5.3 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_access_policy_manager:11.6.0:*:*:*:*:*:*:* Versions 11.6.0 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_advanced_firewall_manager:11.4.1:*:*:*:*:*:*:* Versions 11.4.1 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_advanced_firewall_manager:11.5.3:*:*:*:*:*:*:* Versions 11.5.3 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_advanced_firewall_manager:11.6.0:*:*:*:*:*:*:* Versions 11.6.0 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_analytics:11.4.1:*:*:*:*:*:*:* Versions 11.4.1 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_analytics:11.5.3:*:*:*:*:*:*:* Versions 11.5.3 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_analytics:11.6.0:*:*:*:*:*:*:* Versions 11.6.0 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_application_acceleration_manager:11.4.1:*:*:*:*:*:*:* Versions 11.4.1 Vulnerable ·F5
Show 18 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:f5:big-ip_application_acceleration_manager:11.5.3:*:*:*:*:*:*:* | 11.5.3 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_application_acceleration_manager:11.6.0:*:*:*:*:*:*:* | 11.6.0 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_application_security_manager:11.4.1:*:*:*:*:*:*:* | 11.4.1 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_application_security_manager:11.5.3:*:*:*:*:*:*:* | 11.5.3 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_application_security_manager:11.6.0:*:*:*:*:*:*:* | 11.6.0 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_global_traffic_manager:11.4.1:*:*:*:*:*:*:* | 11.4.1 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_global_traffic_manager:11.5.3:*:*:*:*:*:*:* | 11.5.3 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_global_traffic_manager:11.6.0:*:*:*:*:*:*:* | 11.6.0 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_link_controller:11.4.1:*:*:*:*:*:*:* | 11.4.1 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_link_controller:11.5.3:*:*:*:*:*:*:* | 11.5.3 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_link_controller:11.6.0:*:*:*:*:*:*:* | 11.6.0 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_local_traffic_manager:11.4.1:*:*:*:*:*:*:* | 11.4.1 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_local_traffic_manager:11.5.3:*:*:*:*:*:*:* | 11.5.3 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_local_traffic_manager:11.6.0:*:*:*:*:*:*:* | 11.6.0 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_policy_enforcement_manager:11.4.1:*:*:*:*:*:*:* | 11.4.1 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_policy_enforcement_manager:11.5.3:*:*:*:*:*:*:* | 11.5.3 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_policy_enforcement_manager:11.6.0:*:*:*:*:*:*:* | 11.6.0 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_protocol_security_module:11.4.1:*:*:*:*:*:*:* | 11.4.1 | Vulnerable | F5 |
- cpe:2.3:a:f5:big-ip_application_acceleration_manager:11.5.3:*:*:*:*:*:*:* Versions 11.5.3 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_application_acceleration_manager:11.6.0:*:*:*:*:*:*:* Versions 11.6.0 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_application_security_manager:11.4.1:*:*:*:*:*:*:* Versions 11.4.1 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_application_security_manager:11.5.3:*:*:*:*:*:*:* Versions 11.5.3 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_application_security_manager:11.6.0:*:*:*:*:*:*:* Versions 11.6.0 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_global_traffic_manager:11.4.1:*:*:*:*:*:*:* Versions 11.4.1 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_global_traffic_manager:11.5.3:*:*:*:*:*:*:* Versions 11.5.3 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_global_traffic_manager:11.6.0:*:*:*:*:*:*:* Versions 11.6.0 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_link_controller:11.4.1:*:*:*:*:*:*:* Versions 11.4.1 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_link_controller:11.5.3:*:*:*:*:*:*:* Versions 11.5.3 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_link_controller:11.6.0:*:*:*:*:*:*:* Versions 11.6.0 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_local_traffic_manager:11.4.1:*:*:*:*:*:*:* Versions 11.4.1 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_local_traffic_manager:11.5.3:*:*:*:*:*:*:* Versions 11.5.3 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_local_traffic_manager:11.6.0:*:*:*:*:*:*:* Versions 11.6.0 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_policy_enforcement_manager:11.4.1:*:*:*:*:*:*:* Versions 11.4.1 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_policy_enforcement_manager:11.5.3:*:*:*:*:*:*:* Versions 11.5.3 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_policy_enforcement_manager:11.6.0:*:*:*:*:*:*:* Versions 11.6.0 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_protocol_security_module:11.4.1:*:*:*:*:*:*:* Versions 11.4.1 Vulnerable ·F5
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2015-8240
- 2026-10-03 Alias added: GHSA-52h8-3q6w-fv2x
References
More F5 Big-ip Access Policy Manager vulnerabilities
- TI-2023-25230 BIG-IP Configuration utility unauthenticated remote code execution vulnerability KEVCVSS 3.1CRITICAL 9.8
- TI-2022-01269 Missing authentication in F5 BIG-IP KEVCVSS 3.1CRITICAL 9.8
- TI-2021-05850 Memory corruption in BIG-IP KEVCVSS 3.1CRITICAL 9.8
- TI-2021-05845 Server-side request forgery in BIG-IP; BIG-IQ KEVCVSS 3.1CRITICAL 9.8
- TI-2020-04820 Path traversal in BIG-IP KEVCVSS 3.1CRITICAL 9.8
- TI-2014-05975 GNU Bash through 4.3 bash43-025 processes trailing strings after certain malformed… KEVCVSS 3.1CRITICAL 9.8
Sources
- CVE-2015-8240 · CVE Program
- CVE-2015-8240 · NVD
- FIRST EPSS
- GHSA-52h8-3q6w-fv2x · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences