CVE-2016-6876
Summary
| CVE | CVE-2016-6876 |
|---|---|
| State | PUBLISHED |
| Assigner | mitre |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2016-09-07 19:28:17 UTC |
| Updated | 2026-05-06 22:30:45 UTC |
| Description | The RESOLV::lookup iRule command in F5 BIG-IP LTM, APM, ASM, and Link Controller 10.2.1 through 10.2.4, 11.2.1, 11.4.x, 11.5.x before 11.5.4 HF2, 11.6.x before 11.6.1, and 12.0.0 before HF3; BIG-IP AAM, AFM, and PEM 11.4.x, 11.5.x before 11.5.4 HF2, 11.6.x before 11.6.1, and 12.0.0 before HF3; BIG-IP Analytics 11.2.1, 11.4.x, 11.5.x before 11.5.4 HF2, 11.6.x before 11.6.1, and 12.0.0 before HF3; BIG-IP DNS 12.0.0 before HF3; BIG-IP Edge Gateway, WebAccelerator, and WOM 10.2.1 through 10.2.4 and 11.2.1; BIG-IP GTM 10.2.1 through 10.2.4, 11.2.1, 11.4.x, 11.5.x before 11.5.4 HF2, and 11.6.x before 11.6.1; and BIG-IP PSM 10.2.1 through 10.2.4 and 11.4.0 through 11.4.1 allows remote DNS servers to cause a denial of service (CPU consumption or Traffic Management Microkernel crash) via a crafted PTR response. |
Risk And Classification
Primary CVSS: v3.0 7.5 HIGH from [email protected]
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS: 0.007490000 probability, percentile 0.732440000 (date 2026-05-12)
Problem Types: CWE-399 | n/a
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.0 | [email protected] | Primary | 7.5 | HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| 2.0 | [email protected] | Primary | 5 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
CVSS v3.0 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
NoneScope
UnchangedConfidentiality
NoneIntegrity
NoneAvailability
HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v2.0 Breakdown
Access Vector
NetworkAccess Complexity
LowAuthentication
NoneConfidentiality
NoneIntegrity
NoneAvailability
PartialAV:N/AC:L/Au:N/C:N/I:N/A:P
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Application | F5 | Big-ip Access Policy Manager | 10.2.1 | All | All | All |
| Application | F5 | Big-ip Access Policy Manager | 10.2.2 | All | All | All |
| Application | F5 | Big-ip Access Policy Manager | 10.2.3 | All | All | All |
| Application | F5 | Big-ip Access Policy Manager | 10.2.4 | All | All | All |
| Application | F5 | Big-ip Access Policy Manager | 11.2.1 | All | All | All |
| Application | F5 | Big-ip Access Policy Manager | 11.4.0 | All | All | All |
| Application | F5 | Big-ip Access Policy Manager | 11.4.1 | All | All | All |
| Application | F5 | Big-ip Access Policy Manager | 11.5.0 | All | All | All |
| Application | F5 | Big-ip Access Policy Manager | 11.5.1 | All | All | All |
| Application | F5 | Big-ip Access Policy Manager | 11.5.2 | All | All | All |
| Application | F5 | Big-ip Access Policy Manager | 11.5.3 | All | All | All |
| Application | F5 | Big-ip Access Policy Manager | 11.5.4 | All | All | All |
| Application | F5 | Big-ip Access Policy Manager | 11.6.0 | All | All | All |
| Application | F5 | Big-ip Access Policy Manager | 12.0.0 | All | All | All |
| Application | F5 | Big-ip Advanced Firewall Manager | 11.4.0 | All | All | All |
| Application | F5 | Big-ip Advanced Firewall Manager | 11.4.1 | All | All | All |
| Application | F5 | Big-ip Advanced Firewall Manager | 11.5.0 | All | All | All |
| Application | F5 | Big-ip Advanced Firewall Manager | 11.5.1 | All | All | All |
| Application | F5 | Big-ip Advanced Firewall Manager | 11.5.2 | All | All | All |
| Application | F5 | Big-ip Advanced Firewall Manager | 11.5.3 | All | All | All |
| Application | F5 | Big-ip Advanced Firewall Manager | 11.5.4 | All | All | All |
| Application | F5 | Big-ip Advanced Firewall Manager | 11.6.0 | All | All | All |
| Application | F5 | Big-ip Advanced Firewall Manager | 12.0.0 | All | All | All |
| Application | F5 | Big-ip Analytics | 11.2.1 | All | All | All |
| Application | F5 | Big-ip Analytics | 11.4.0 | All | All | All |
| Application | F5 | Big-ip Analytics | 11.4.1 | All | All | All |
| Application | F5 | Big-ip Analytics | 11.5.0 | All | All | All |
| Application | F5 | Big-ip Analytics | 11.5.1 | All | All | All |
| Application | F5 | Big-ip Analytics | 11.5.2 | All | All | All |
| Application | F5 | Big-ip Analytics | 11.5.3 | All | All | All |
| Application | F5 | Big-ip Analytics | 11.5.4 | All | All | All |
| Application | F5 | Big-ip Analytics | 11.6.0 | All | All | All |
| Application | F5 | Big-ip Analytics | 12.0.0 | All | All | All |
| Application | F5 | Big-ip Application Acceleration Manager | 11.4.0 | All | All | All |
| Application | F5 | Big-ip Application Acceleration Manager | 11.4.1 | All | All | All |
| Application | F5 | Big-ip Application Acceleration Manager | 11.5.0 | All | All | All |
| Application | F5 | Big-ip Application Acceleration Manager | 11.5.1 | All | All | All |
| Application | F5 | Big-ip Application Acceleration Manager | 11.5.2 | All | All | All |
| Application | F5 | Big-ip Application Acceleration Manager | 11.5.3 | All | All | All |
| Application | F5 | Big-ip Application Acceleration Manager | 11.5.4 | All | All | All |
| Application | F5 | Big-ip Application Acceleration Manager | 11.6.0 | All | All | All |
| Application | F5 | Big-ip Application Acceleration Manager | 12.0.0 | All | All | All |
| Application | F5 | Big-ip Application Security Manager | 10.2.1 | All | All | All |
| Application | F5 | Big-ip Application Security Manager | 10.2.2 | All | All | All |
| Application | F5 | Big-ip Application Security Manager | 10.2.3 | All | All | All |
| Application | F5 | Big-ip Application Security Manager | 10.2.4 | All | All | All |
| Application | F5 | Big-ip Application Security Manager | 11.2.1 | All | All | All |
| Application | F5 | Big-ip Application Security Manager | 11.4.0 | All | All | All |
| Application | F5 | Big-ip Application Security Manager | 11.4.1 | All | All | All |
| Application | F5 | Big-ip Application Security Manager | 11.5.0 | All | All | All |
| Application | F5 | Big-ip Application Security Manager | 11.5.1 | All | All | All |
| Application | F5 | Big-ip Application Security Manager | 11.5.2 | All | All | All |
| Application | F5 | Big-ip Application Security Manager | 11.5.3 | All | All | All |
| Application | F5 | Big-ip Application Security Manager | 11.5.4 | All | All | All |
| Application | F5 | Big-ip Application Security Manager | 11.6.0 | All | All | All |
| Application | F5 | Big-ip Application Security Manager | 12.0.0 | All | All | All |
| Application | F5 | Big-ip Domain Name System | 12.0.0 | All | All | All |
| Application | F5 | Big-ip Edge Gateway | 10.2.1 | All | All | All |
| Application | F5 | Big-ip Edge Gateway | 10.2.2 | All | All | All |
| Application | F5 | Big-ip Edge Gateway | 10.2.3 | All | All | All |
| Application | F5 | Big-ip Edge Gateway | 10.2.4 | All | All | All |
| Application | F5 | Big-ip Edge Gateway | 11.2.1 | All | All | All |
| Application | F5 | Big-ip Global Traffic Manager | 10.2.1 | All | All | All |
| Application | F5 | Big-ip Global Traffic Manager | 10.2.2 | All | All | All |
| Application | F5 | Big-ip Global Traffic Manager | 10.2.3 | All | All | All |
| Application | F5 | Big-ip Global Traffic Manager | 10.2.4 | All | All | All |
| Application | F5 | Big-ip Global Traffic Manager | 11.2.1 | All | All | All |
| Application | F5 | Big-ip Global Traffic Manager | 11.4.0 | All | All | All |
| Application | F5 | Big-ip Global Traffic Manager | 11.4.1 | All | All | All |
| Application | F5 | Big-ip Global Traffic Manager | 11.5.0 | All | All | All |
| Application | F5 | Big-ip Global Traffic Manager | 11.5.1 | All | All | All |
| Application | F5 | Big-ip Global Traffic Manager | 11.5.2 | All | All | All |
| Application | F5 | Big-ip Global Traffic Manager | 11.5.3 | All | All | All |
| Application | F5 | Big-ip Global Traffic Manager | 11.5.4 | All | All | All |
| Application | F5 | Big-ip Global Traffic Manager | 11.6.0 | All | All | All |
| Application | F5 | Big-ip Link Controller | 10.2.1 | All | All | All |
| Application | F5 | Big-ip Link Controller | 10.2.2 | All | All | All |
| Application | F5 | Big-ip Link Controller | 10.2.3 | All | All | All |
| Application | F5 | Big-ip Link Controller | 10.2.4 | All | All | All |
| Application | F5 | Big-ip Link Controller | 11.2.1 | All | All | All |
| Application | F5 | Big-ip Link Controller | 11.4.0 | All | All | All |
| Application | F5 | Big-ip Link Controller | 11.4.1 | All | All | All |
| Application | F5 | Big-ip Link Controller | 11.5.0 | All | All | All |
| Application | F5 | Big-ip Link Controller | 11.5.1 | All | All | All |
| Application | F5 | Big-ip Link Controller | 11.5.2 | All | All | All |
| Application | F5 | Big-ip Link Controller | 11.5.3 | All | All | All |
| Application | F5 | Big-ip Link Controller | 11.5.4 | All | All | All |
| Application | F5 | Big-ip Link Controller | 11.6.0 | All | All | All |
| Application | F5 | Big-ip Link Controller | 12.0.0 | All | All | All |
| Application | F5 | Big-ip Local Traffic Manager | 10.2.1 | All | All | All |
| Application | F5 | Big-ip Local Traffic Manager | 10.2.2 | All | All | All |
| Application | F5 | Big-ip Local Traffic Manager | 10.2.3 | All | All | All |
| Application | F5 | Big-ip Local Traffic Manager | 10.2.4 | All | All | All |
| Application | F5 | Big-ip Local Traffic Manager | 11.2.1 | All | All | All |
| Application | F5 | Big-ip Local Traffic Manager | 11.4.0 | All | All | All |
| Application | F5 | Big-ip Local Traffic Manager | 11.4.1 | All | All | All |
| Application | F5 | Big-ip Local Traffic Manager | 11.5.0 | All | All | All |
| Application | F5 | Big-ip Local Traffic Manager | 11.5.1 | All | All | All |
| Application | F5 | Big-ip Local Traffic Manager | 11.5.2 | All | All | All |
| Application | F5 | Big-ip Local Traffic Manager | 11.5.3 | All | All | All |
| Application | F5 | Big-ip Local Traffic Manager | 11.5.4 | All | All | All |
| Application | F5 | Big-ip Local Traffic Manager | 11.6.0 | All | All | All |
| Application | F5 | Big-ip Local Traffic Manager | 12.0.0 | All | All | All |
| Application | F5 | Big-ip Policy Enforcement Manager | 11.4.0 | All | All | All |
| Application | F5 | Big-ip Policy Enforcement Manager | 11.4.1 | All | All | All |
| Application | F5 | Big-ip Policy Enforcement Manager | 11.5.0 | All | All | All |
| Application | F5 | Big-ip Policy Enforcement Manager | 11.5.1 | All | All | All |
| Application | F5 | Big-ip Policy Enforcement Manager | 11.5.2 | All | All | All |
| Application | F5 | Big-ip Policy Enforcement Manager | 11.5.3 | All | All | All |
| Application | F5 | Big-ip Policy Enforcement Manager | 11.5.4 | All | All | All |
| Application | F5 | Big-ip Policy Enforcement Manager | 11.6.0 | All | All | All |
| Application | F5 | Big-ip Policy Enforcement Manager | 12.0.0 | All | All | All |
| Application | F5 | Big-ip Protocol Security Module | 10.2.1 | All | All | All |
| Application | F5 | Big-ip Protocol Security Module | 10.2.2 | All | All | All |
| Application | F5 | Big-ip Protocol Security Module | 10.2.3 | All | All | All |
| Application | F5 | Big-ip Protocol Security Module | 10.2.4 | All | All | All |
| Application | F5 | Big-ip Protocol Security Module | 11.4.0 | All | All | All |
| Application | F5 | Big-ip Protocol Security Module | 11.4.1 | All | All | All |
| Application | F5 | Big-ip Wan Optimization Manager | 10.2.1 | All | All | All |
| Application | F5 | Big-ip Wan Optimization Manager | 10.2.2 | All | All | All |
| Application | F5 | Big-ip Wan Optimization Manager | 10.2.3 | All | All | All |
| Application | F5 | Big-ip Wan Optimization Manager | 10.2.4 | All | All | All |
| Application | F5 | Big-ip Wan Optimization Manager | 11.2.1 | All | All | All |
| Application | F5 | Big-ip Webaccelerator | 10.2.1 | All | All | All |
| Application | F5 | Big-ip Webaccelerator | 10.2.2 | All | All | All |
| Application | F5 | Big-ip Webaccelerator | 10.2.3 | All | All | All |
| Application | F5 | Big-ip Webaccelerator | 10.2.4 | All | All | All |
| Application | F5 | Big-ip Webaccelerator | 11.2.1 | All | All | All |
Vendor Declared Affected Products
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| F5 BIG-IP DNS Resolver Bug Lets Remote Users Consume Excessive System Resources on the Target System - SecurityTracker | af854a3a-2127-422b-91ae-364da2661108 | www.securitytracker.com | Third Party Advisory, VDB Entry |
| support.f5.com/kb/en-us/solutions/public/k/52/sol52638558.html | af854a3a-2127-422b-91ae-364da2661108 | support.f5.com | Vendor Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.