---
id: "CVE-2008-4128"
kind: "vulnerability"
aliases: ["CVE-2008-4128"]
title: "Multiple cross-site request forgery (CSRF) vulnerabilities in the HTTP Administration component in Cisco IOS 12.4 on\u2026"
severity: "critical"
cvss: 9.3
epss: null
exploited: true
status: "open"
category: "infrastructure"
products: [{"name": "Cisco IOS", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "cisco ios", "fixed": [], "affected": "= 12.4", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["cisco-ios", "exploited", "infrastructure", "network-devices", "self-hosted"]
not_affected_if: ["http-admin-disabled", "non-ios-platform"]
published_at: "2008-09-18T20:00:00+00:00"
first_seen_at: "2026-10-23T19:11:51+00:00"
updated_at: "2026-10-23T23:44:51+00:00"
sources: [{"source": "kev", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2008-4128", "first_seen_at": "2026-10-23T19:11:51+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2008-4128", "first_seen_at": "2026-10-23T23:44:51+00:00"}]
---

# Multiple cross-site request forgery (CSRF) vulnerabilities in the HTTP Administration component in Cisco IOS 12.4 on…

Cisco IOS 12.4 has cross-site request forgery flaws in its web admin interface, letting a remote attacker who tricks a logged-in administrator's browser run privileged commands such as changing aliases or showing privilege data. CISA lists it as actively exploited in the wild.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- vendor:Cisco IOS affected ? fixed ?
- vendor:cisco ios affected = 12.4 fixed ?

## Fix

Apply the mitigation or update in accordance with Cisco's vendor instructions as referenced by CISA; the sources do not name a fixed IOS version.

## Timeline

- 2026-10-23T19:11:51+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2008-4128
- 2026-10-23T23:44:51+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2008-4128

## From the sources

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.

CISA required 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.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_