PatchTheCVECVE-2008-4128: Cisco IOS Cross-Site Request Forgery Vulnerability
CVE-2008-4128 is a high-severity flaw (CVSS 8.1) affecting ios, reported as exploited in the wild. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Multiple cross-site request forgery (CSRF) vulnerabilities in the HTTP Administration component in Cisco IOS 12.4 on the 871 Integrated Services Router allow remote attackers to execute arbitrary commands via (1) a certain "show privilege" command to the /level/15/exec/- URI, and (2) a certain "alias exec" command to the /level/15/exec/-/configure/http URI. NOTE: some of these details are obtained from third party information.
Why this priority
- High severity
- EPSS top 2%: very likely to be exploited
- Exploited in the wild (CISA KEV)
- Public exploit reference
A fixed release or distro patch exists.
Risk facts
| CVSS score | 8.1 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | Required |
| EPSS exploit chance | 33.9% (top 2%) |
| CISA exploited list | Yes, fix due 2026-07-16 |
| Weakness | CWE-352 |
| Published | 2008-09-18 |
| Last modified | 2026-09-24 |
Last updated 2026-09-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Exploited Added to the CISA Known Exploited Vulnerabilities list
- Deadline CISA due date for US federal agencies to patch
- Updated Record last modified
Exact fixes by distribution
Public exploits and detection
Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.
- Write-up: www.exploit-db.com/exploits/6477
- Exploit-DB: Cisco Router - HTTP Administration Cross-Site Request Forgery / Command Execution (1)
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2008-4128?
ios: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2008-4128 being exploited?
Yes. CVE-2008-4128 is on the CISA Known Exploited Vulnerabilities list, so treat it as patch-now.
What does CVE-2008-4128 affect?
CVE-2008-4128 affects ios. Severity is high (CVSS 8.1). Multiple cross-site request forgery (CSRF) vulnerabilities in the HTTP Administration component in Cisco IOS 12.4 on the 871 Integrated Services Router allow remote attackers to execute arbitrary commands via (1) a certain "show privilege"
How urgent is CVE-2008-4128?
Priority 83/100. High severity; EPSS top 2%: very likely to be exploited; Exploited in the wild (CISA KEV); Public exploit reference
Software pages
iOS vulnerabilities · Cisco vulnerabilities
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