KEV / Record
CVE-2008-4128: Cisco IOS Cross-Site Request Forgery Vulnerability
Answer CVE-2008-4128 is in CISA's Known Exploited Vulnerabilities catalog. It was added on 2026-07-13, and US federal civilian agencies must act on it by 2026-07-16.
DCISA description
Cisco IOS 12.4 contains multiple cross-site forgery vulnerabilities that allows 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.
ARequired action
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
RNotes and references
https://www.cisco.com/c/en/us/obsolete/ios-nx-os-software/cisco-ios-software-releases-12-4-mainline.html ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2008-4128
FRecord
- CVE
- CVE-2008-4128
- Vendor
- Cisco (99 entries in KEV)
- Product
- IOS (2 entries)
- Added to KEV
- Federal due date
- Past due date (2026-07-16)
- Remediation window
- 3 days
- Known ransomware use
- Unknown (not confirmed by CISA)
VOther Cisco entries in KEV
| CVE | Product | Added | Ransomware |
|---|---|---|---|
| CVE-2026-76460 | Identity Services Engine | Unknown | |
| CVE-2026-76461 | Secure Email Gateway | Unknown | |
| CVE-2026-20079 | Secure Firewall Management Center (FMC) and Security Cloud Control (SCC) Firewall Management | Unknown | |
| CVE-2026-20349 | Secure Firewall Adaptive Security Appliance (ASA) and Secure Firewall Threat Defense (FTD) | Unknown | |
| CVE-2026-20316 | Secure Firewall Management Center (FMC) | Known | |
| CVE-2026-20230 | Unified Communications Manager | Unknown | |
| CVE-2026-20262 | Catalyst SD-WAN Manager | Unknown | |
| CVE-2026-20245 | Catalyst SD-WAN Manager | Unknown | |
| CVE-2026-20182 | Catalyst SD-WAN | Unknown | |
| CVE-2026-20133 | Catalyst SD-WAN Manager | Unknown |
This record repeats CISA's entry and is excluded from search indexes until an analyst note is added.
Source: CISA KEV catalog v2026.09.23, released 2026-09-23. Windows end 2026-09-23.