IBM i improper HTTP header neutralization
Priority LOW 24CWE-644Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
IBM i 7.3, 7.4, 7.5, and 7.5 is vulnerable to a host header injection attack caused by improper neutralization of HTTP header content by IBM Navigator for i. An authenticated user can manipulate the host header in HTTP requests to change domain/IP address which may lead to unexpected behavior.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00316 24th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| IBM | i | 7.3; 7.4; 7.5; 7.6 | — | No fix listed | CNA |
- i VendorIBM Affected 7.3; 7.4; 7.5; 7.6 Fixed in — No fix listed CNA
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:ibm:i:7.3:*:*:*:*:*:*:* | 7.3 | Vulnerable | IBM |
| cpe:2.3:a:ibm:i:7.4:*:*:*:*:*:*:* | 7.4 | Vulnerable | IBM |
| cpe:2.3:a:ibm:i:7.5:*:*:*:*:*:*:* | 7.5 | Vulnerable | IBM |
| cpe:2.3:a:ibm:i:7.6:*:*:*:*:*:*:* | 7.6 | Vulnerable | IBM |
| cpe:2.3:o:ibm:i:-:*:*:*:*:*:*:* | not specified by NVD | Running on | IBM |
- cpe:2.3:a:ibm:i:7.3:*:*:*:*:*:*:* Versions 7.3 Vulnerable ·IBM
- cpe:2.3:a:ibm:i:7.4:*:*:*:*:*:*:* Versions 7.4 Vulnerable ·IBM
- cpe:2.3:a:ibm:i:7.5:*:*:*:*:*:*:* Versions 7.5 Vulnerable ·IBM
- cpe:2.3:a:ibm:i:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·IBM
- cpe:2.3:o:ibm:i:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·IBM
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-2950
- 2026-10-03 Alias added: GHSA-8c8c-3855-2gv4
References
More IBM I vulnerabilities
- TI-2024-18115 IBM i privilege escalation CVSS 3.1HIGH 7.8
- TI-2026-14283 IBM i is Affected By Remote Code Execution Vulnerability in Line Printer Daemon [] CVSS 3.1CRITICAL 9.8
- TI-2023-14729 IBM i command execution CVSS 3.1CRITICAL 9.8
- TI-2026-14279 IBM i is Affected By Denial of Service Vulnerabilities in NFS [, ] CVSS 3.1CRITICAL 9.1
- TI-2026-14196 IBM i is Affected By Denial of Service Vulnerabilities in NFS [, ] CVSS 3.1CRITICAL 9.1
- TI-2026-13994 IBM i is Affected By Multiple Vulnerabilities in Simple Mail Transfer Protocol CVSS 3.1CRITICAL 9.1
Sources
- CVE-2025-2950 · CVE Program
- CVE-2025-2950 · NVD
- FIRST EPSS
- GHSA-8c8c-3855-2gv4 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences