CVE-2008-4128 — Cisco IOS Cross-Site Request Forgery Vulnerability

In brief

Severity · CVSS: High8.1CVSS 3.1, High
EPSS: 34%
CISA KEV: Known exploited, listed since 13 Jul 2026
CERT-FR: No advisory or alert referenced in the catalog
Vendor: Cisco
Published · Modified: 18 Sept 2008 · 24 Sept 2026
Last verified: 1 Oct 2026 at 09:31 UTC

Summary

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.

Weakness: CWE-352

Title, description and the vendor's statements are quoted from the CVE record; a vendor's advisory is summarised in Patcharo's words, with a link.

Affected and fixed versions

Per product and release branch, as the vendor's CVE record and official advisory state them. A fixed release is shown only when a document names it: the vendor's, or CERT-FR's for Check Point, with its source.

No precise fixed release is published in the sources Patcharo follows.

Remediation

CISA required action

CISA KEV 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).

Full CISA action

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.

CISA due date: 16 Jul 2026

SourceCISA KEV

Last verified 1 Oct 2026 at 09:31 UTC

Known exploitation

Added to CISA KEV on 13 Jul 2026

Federal remediation due date: 16 Jul 2026

The CISA required action is shown under Remediation.

34% probability of exploitation in the next 30 days (percentile 98%).

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

CERT-FR

No CERT-FR advisory or alert of the last two years references this CVE, for the vendors Patcharo covers.

Timeline

18 Sept 2008Published by the source
13 Jul 2026Added to CISA KEV
16 Jul 2026CISA remediation due date
24 Sept 2026Source record last modified
27 Sept 2026EPSS score computed
1 Oct 2026Last verified by Patcharo

Official sources

CVE Program recordretrieved 1 Oct 2026 at 09:31 UTC
CISA Known Exploited Vulnerabilitiesretrieved 1 Oct 2026 at 09:28 UTC
NVDretrieved 27 Sept 2026 at 23:44 UTC
FIRST EPSSretrieved 27 Sept 2026 at 23:46 UTC

Known exploited

References

CVE Program record · CISA Known Exploited Vulnerabilities · NVD · FIRST EPSS

How Patcharo reads this

Affected and fixed releases come from the vendor's structured statements and are matched against exact versions; CVSS from NVD, exploitation from CISA KEV and the vendor's own advisory, probability from FIRST EPSS. Missing data stays Unknown and never becomes Not affected.

Read the methodology Read the guide: Cisco Secure Firewall release trains: Threat Defense, Management Center and ASA versions explained