IBM OS/400 (aka i5/OS) V4R2M0 through V5R3M0 on iSeries machines sends responses to TCP…
Priority LOW 37Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Complete · None · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
IBM OS/400 (aka i5/OS) V4R2M0 through V5R3M0 on iSeries machines sends responses to TCP SYN-FIN packets, which allows remote attackers to obtain system information and possibly bypass firewall rules.
Why it matters now
EPSS 0.015 74th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:ibm:os_400:r520:*:*:*:*:*:*:* | r520 | Vulnerable | IBM |
| cpe:2.3:o:ibm:os_400:v4r2m0:*:*:*:*:*:*:* | v4r2m0 | Vulnerable | IBM |
| cpe:2.3:o:ibm:os_400:v4r3:*:*:*:*:*:*:* | v4r3 | Vulnerable | IBM |
| cpe:2.3:o:ibm:os_400:v4r4:*:*:*:*:*:*:* | v4r4 | Vulnerable | IBM |
| cpe:2.3:o:ibm:os_400:v4r5:*:*:*:*:*:*:* | v4r5 | Vulnerable | IBM |
| cpe:2.3:o:ibm:os_400:v5r1:*:*:*:*:*:*:* | v5r1 | Vulnerable | IBM |
| cpe:2.3:o:ibm:os_400:v5r2m0:*:*:*:*:*:*:* | v5r2m0 | Vulnerable | IBM |
| cpe:2.3:o:ibm:os_400:v5r3m0:*:*:*:*:*:*:* | v5r3m0 | Vulnerable | IBM |
- cpe:2.3:o:ibm:os_400:r520:*:*:*:*:*:*:* Versions r520 Vulnerable ·IBM
- cpe:2.3:o:ibm:os_400:v4r2m0:*:*:*:*:*:*:* Versions v4r2m0 Vulnerable ·IBM
- cpe:2.3:o:ibm:os_400:v4r3:*:*:*:*:*:*:* Versions v4r3 Vulnerable ·IBM
- cpe:2.3:o:ibm:os_400:v4r4:*:*:*:*:*:*:* Versions v4r4 Vulnerable ·IBM
- cpe:2.3:o:ibm:os_400:v4r5:*:*:*:*:*:*:* Versions v4r5 Vulnerable ·IBM
- cpe:2.3:o:ibm:os_400:v5r1:*:*:*:*:*:*:* Versions v5r1 Vulnerable ·IBM
- cpe:2.3:o:ibm:os_400:v5r2m0:*:*:*:*:*:*:* Versions v5r2m0 Vulnerable ·IBM
- cpe:2.3:o:ibm:os_400:v5r3m0:*:*:*:*:*:*:* Versions v5r3m0 Vulnerable ·IBM
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2007-3537
- 2026-10-03 Alias added: GHSA-qv35-fg75-f39j
More IBM Os 400 vulnerabilities
- TI-2006-06579 Multiple unspecified vulnerabilities in osp-cert in IBM OS/400 V5R3M0 have unspecified… CVSS 2.0HIGH 10.0
- TI-2005-01120 Unknown vulnerability in Incoming Remote Command (iSeries Access for Windows Remote… CVSS 2.0MEDIUM 5.0
- TI-2007-00429 Unspecified vulnerability in IBM OS/400 R530 and R535 has unknown impact and remote… CVSS 2.0MEDIUM 5.0
- TI-2008-02591 Buffer overflow in the BrSmRcvAndCheck function in the RCHMGR module on IBM OS/400… CVSS 2.0MEDIUM 4.7
- TI-2008-00662 Cross-site scripting (XSS) vulnerability in the HTTP Server in IBM OS/400 V5R3M0 and… CVSS 2.0MEDIUM 4.3
- TI-2002-01650 The System Request menu in IBM AS/400 allows local users to list valid user accounts by… CVSS 2.0LOW 2.1
Sources
- CVE-2007-3537 · CVE Program
- CVE-2007-3537 · NVD
- FIRST EPSS
- GHSA-qv35-fg75-f39j · 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