F5 BIG-IP APM up to 11.4.1 HF9/11.5.2/11.6.0 HF3 Citrix Remote Desktop Connection memory corruption

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.

A vulnerability classified as very critical was found in F5 BIG-IP APM up to 11.4.1 HF9/11.5.2/11.6.0 HF3 (Firewall Software). Affected by this vulnerability is some unknown processing of the component Citrix Remote Desktop Connection Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was released 01/12/2016 (Website). It is possible to read the advisory at support.f5.com. This vulnerability is known as CVE-2015-8098 since 11/09/2015. The attack can be launched remotely. Required for exploitation is a single authentication. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/02/2022).

The vulnerability scanner Nessus provides a plugin with the ID 87771 (F5 Networks BIG-IP : Out-of-bounds memory vulnerability with the BIG-IP APM system (SOL43552605)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family F5 Networks Local Security Checks and running in the context l.

Upgrading to version 11.4.1 HF10, 11.5.3 or 11.6.0 HF4 eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (87771).






  • commercial

CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.6

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍



VulDB Base Score: 🔍
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NVD Base Score: 🔍


Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍


Nessus ID: 87771
Nessus Name: F5 Networks BIG-IP : Out-of-bounds memory vulnerability with the BIG-IP APM system (SOL43552605)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 800325
OpenVAS Name: F5 BIG-IP - SOL43552605 - Out-of-bounds memory vulnerability with the BIG-IP APM system CVE-2015-8098
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍


Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: BIG-IP APM 11.4.1 HF10/11.5.3/11.6.0 HF4


11/09/2015 🔍
01/06/2016 +58 days 🔍
01/06/2016 +0 days 🔍
01/07/2016 +1 days 🔍
01/07/2016 +0 days 🔍
01/10/2016 +3 days 🔍
01/12/2016 +2 days 🔍
01/12/2016 +0 days 🔍
01/13/2016 +1 days 🔍
07/02/2022 +2362 days 🔍


Vendor: f5.com

Advisory: K43552605
Status: Not defined
Confirmation: 🔍

CVE: CVE-2015-8098 (🔍)
SecurityTracker: 1034609
Vulnerability Center: 55574 - Big-IP APM Remote Code Execution due to an Out-of-Bounds Memory Vulnerability, Critical
SecurityFocus: 80022 - F5 BIG-IP APM File Handling Out of Bounds Memory Corruption Vulnerability


Created: 01/13/2016 09:24 AM
Updated: 07/02/2022 10:33 PM
Changes: 01/13/2016 09:24 AM (58), 06/20/2018 08:44 AM (23), 07/02/2022 10:25 PM (3), 07/02/2022 10:33 PM (1)
Complete: 🔍


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