EUVD-2025-209014Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization HTTP header neutralization
|
| Impact | The CVSS 3.1 vector (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N) indicates a network-exploitable vulnerability requiring no authentication or user interaction, with low attack complexity and impacts to confidentiality and integrity but not availability. The combination of AV:N and AC:L makes this broadly exploitable. However, the absence of documented public POC, lack of KEV status, and the fact that a vendor patch already exists suggest this is not yet actively weaponized in the wild. The vulnerability affects only specific versions (11.7.0.0 through 11.7.1.6), meaning organizations on older or newer releases may not be impacted. For organizations running vulnerable versions with internet-facing InfoSphere deployments, this represents a legitimate priority requiring timely patching; for internal-only or already-updated installations, risk is significantly lower. |
| Exploit ScenarioDerived | An attacker could craft a malicious URL targeting a vulnerable InfoSphere deployment with an injected HOST header (e.g., 'Host: legitimate.example.com\r\nSet-Cookie: admin=true'). If a victim clicks the link or the request is reflected in an error page without sanitization, the injected header could either poison the application cache (causing all subsequent users to receive the malicious header) or execute reflected XSS if the HOST value is echoed into HTML without encoding. With no user interaction required and trivial network accessibility, this attack can be automated at scale against exposed InfoSphere instances. |
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Alert meAnalysisAIv1 – Mar 25, 2026
IBM InfoSphere Information Server versions 11.7.0.0 through 11.7.1.6 contain an HTTP header injection vulnerability caused by improper validation of the HOST header, allowing unauthenticated remote attackers to conduct cross-site scripting (XSS), cache poisoning, and session hijacking attacks. A vendor patch is available, and while this vulnerability is not currently listed as actively exploited in CISA's Known Exploited Vulnerabilities catalog, the CVSS score of 6.5 with network accessibility and low attack complexity indicates moderate real-world risk.
RemediationAI
Upgrade IBM InfoSphere Information Server to version 11.7.1.7 or later, which includes the security fix for HTTP header injection. Refer to the official IBM security advisory and patch download portal at https://www.ibm.com/support/pages/node/7267526 for detailed upgrade instructions. As interim mitigations pending patching, implement a reverse proxy or WAF configured to validate and sanitize the HOST header, restrict access to InfoSphere administrative and API endpoints to trusted IP ranges, enforce HTTPS with HSTS to prevent header-based cache poisoning, and monitor HTTP access logs for suspicious HOST header patterns.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in euvd
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
The vulnerability exists in IBM InfoSphere Information Server, an enterprise data integration and governance platform (CPE: cpe:2.3:a:ibm:infosphere_information_server). The root cause is classified under CWE-644 (Improper Validation of HTTP Request Header for URL Redirection), which occurs when user-controlled input from HTTP headers—specifically the HOST header—is not properly sanitized before being reflected in responses or used in security-sensitive operations. This allows attackers to inject arbitrary header content, which can be leveraged for cache poisoning (by injecting Set-Cookie or other directives), session hijacking (by manipulating authentication headers), and reflective XSS attacks (by injecting content into Location headers or response bodies derived from the HOST header).
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Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
2DescriptionCVE.org
IBM InfoSphere Information Server 11.7.0.0 through 11.7.1.6 is vulnerable to HTTP header injection, caused by improper validation of input by the HOST headers. This could allow an attacker to conduct various attacks against the vulnerable system, including cross-site scripting, cache poisoning or session hijacking.
Executive ViewAI
Organizations using IBM InfoSphere Information Server 11.7.0.0 through 11.7.1.6 should be aware of notable risk from CVE-2025-14807 rated CVSS 6.5. Exploitation could compromise the security of affected deployments. A patch is available and should be applied during regular vulnerability management.
Apply vendor patch. If patching is delayed: restrict network access and enable monitoring.
Threat Intelligence Overview
NVD
CVE.org
EPSS
Vulnrichment
VulDB
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.
GitHub PoC
Exploit-DB