#VU107630 Improper Neutralization of HTTP Headers for Scripting Syntax in IBM i - CVE-2025-2950

Vulnerability identifier: #VU107630

Vulnerability risk: Low

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-2950

CWE-ID: CWE-644

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
IBM i
Operating systems & Components / Operating system

Vendor: IBM Corporation

Description

The vulnerability allows a remote user to perform spoofing attack.

The vulnerability exists due to improper input validation when processing HTTP requests. A remote user can send a specially crafted HTTP request with an arbitrary Host header that will be accepted by the application.

Successful exploitation of the vulnerability may allow an attacker to perform cross-site scripting, cache poisoning or session hijacking attacks.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

IBM i: 7.3 - 7.6

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External links
https://www.ibm.com/support/pages/node/7231320

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.