CVE-2026-8179 - IBM Aspera High-Speed Transfer Endpoint and Server Buffer Overflow

hello@craftedsignal.io — Wed, 27 May 2026 14:20:37 +0000

IBM Aspera High-Speed Transfer Endpoint and Server, widely used for high-speed data transfer, are susceptible to a critical buffer overflow vulnerability. Specifically, versions 3.7.4 through 4.4.7 Fix Pack 1 of both the Endpoint and Server products contain a flaw within the asperahttpd component. This vulnerability, identified as CVE-2026-8179, could allow an authenticated user with low privileges to execute arbitrary code on the affected system. Given the widespread use of Aspera in data-intensive industries, successful exploitation of this flaw could lead to significant data breaches or system compromise. Defenders should prioritize patching and monitoring for suspicious activity related to the asperahttpd service.

Attack Chain

Attacker gains authenticated access to the Aspera High-Speed Transfer Endpoint or Server.
Attacker crafts a malicious HTTP request targeting the asperahttpd component.
The crafted request exploits the buffer overflow vulnerability (CWE-121) within asperahttpd.
The overflow allows the attacker to overwrite memory regions.
The attacker injects arbitrary code into the memory.
The injected code is executed within the context of the asperahttpd process.
The attacker gains control of the system with the privileges of the asperahttpd service account.
The attacker pivots to other systems or exfiltrates sensitive data.

Impact

Successful exploitation of CVE-2026-8179 can lead to complete system compromise on affected IBM Aspera High-Speed Transfer Endpoint and Server installations. An attacker could leverage this vulnerability to gain unauthorized access to sensitive data, disrupt critical business operations, or use the compromised system as a staging point for further attacks within the network. Given the high base score (8.8), this is considered a critical vulnerability.

Recommendation

Immediately upgrade IBM Aspera High-Speed Transfer Endpoint and Server to a version beyond 4.4.7 Fix Pack 1 to patch CVE-2026-8179, as per IBM’s advisory.
Monitor network traffic for suspicious HTTP requests targeting the asperahttpd component as described in the attack chain.
Deploy the Sigma rule for abnormal processes spawning from the asperahttpd service to detect potential exploitation attempts.
Review access controls for the Aspera High-Speed Transfer Endpoint and Server to minimize the attack surface.

CVE-2026-8175: IBM Aspera High-Speed Transfer Endpoint and Server Buffer Overflow

hello@craftedsignal.io — Wed, 27 May 2026 14:18:42 +0000

IBM Aspera High-Speed Transfer Endpoint 3.7.4 through 4.4.7 Fix Pack 1 and IBM Aspera High-Speed Transfer Server 3.7.4 through 4.4.7 Fix Pack 1 are vulnerable to a buffer overflow in the asperahttpd component. This vulnerability, identified as CVE-2026-8175, could allow an attacker to cause a denial of service, bypass authentication, or execute arbitrary code on the affected system. The vulnerability poses a significant risk to organizations using these products for high-speed data transfer, as it could compromise the confidentiality, integrity, and availability of their systems. Successful exploitation can lead to complete system compromise.

Attack Chain

Attacker sends a specially crafted HTTP request to the vulnerable asperahttpd component.
The asperahttpd component processes the malicious request without proper bounds checking.
A buffer overflow occurs due to the oversized data being written to a fixed-size buffer.
The buffer overflow overwrites adjacent memory regions, potentially corrupting critical data or code.
If the overwritten memory contains executable code, the attacker can redirect control flow to injected code.
The injected code executes with the privileges of the asperahttpd process, potentially SYSTEM.
Attacker gains unauthorized access to the system and can perform actions such as installing malware or stealing data.
The attacker may establish persistence and further compromise the network.

Impact

Successful exploitation of CVE-2026-8175 can lead to a denial of service, authentication bypass, or remote code execution. This vulnerability can allow an attacker to gain complete control of the affected system, potentially leading to data theft, system compromise, or further attacks on the network. Given the critical nature of high-speed data transfer in many organizations, the impact could be significant, affecting sensitive data and business operations.

Recommendation

Apply the security patches provided by IBM for Aspera High-Speed Transfer Endpoint and Server versions 3.7.4 through 4.4.7 Fix Pack 1 to remediate CVE-2026-8175.
Deploy the Sigma rule “Detect CVE-2026-8175 Exploitation Attempt - HTTP Request Overflow” to identify malicious HTTP requests targeting the vulnerable asperahttpd component.
Monitor web server logs for unusual activity or error codes related to buffer overflows, which may indicate exploitation attempts.
Implement network segmentation to limit the potential impact of a successful exploitation.
Regularly review and update security policies and procedures to address emerging threats.

Aspera High-Speed Transfer Server — CraftedSignal Threat Feed

CVE-2026-8179 - IBM Aspera High-Speed Transfer Endpoint and Server Buffer Overflow

Attack Chain

Impact

Recommendation

CVE-2026-8175: IBM Aspera High-Speed Transfer Endpoint and Server Buffer Overflow

Attack Chain

Impact

Recommendation