CVE-2008-4128

Cisco IOS Cross-Site Request Forgery

8.1 HIGHActively exploited (CISA KEV)Public exploitEPSS 33.9%

Published18 Sept 2008
Added to CISA KEV13 Jul 2026
Remediation due16 Jul 2026

Description

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.

CVSS 3.1 breakdown

Attack vectorNetwork

Attack complexityLow

Privileges requiredNone

User interactionRequired

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityNone

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

Affected products

Cisco iOS12.4

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

http://jbrownsec.blogspot.com/2008/09/cisco-0day-released.htmlBroken Link
https://exchange.xforce.ibmcloud.com/vulnerabilities/45226Third Party AdvisoryVDB Entry
https://media.defense.gov/2026/Jul/09/2003959498/-1/-1/1/CSA_IMPROVE_ROUTER_HYGIENE.PDFThird Party AdvisoryUS Government Resource
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2008-4128US Government Resource
https://www.cisco.com/c/en/us/obsolete/ios-nx-os-software/cisco-ios-software-releases-12-4-mainline.htmlProduct
https://www.exploit-db.com/exploits/6476ExploitThird Party AdvisoryVDB Entry
https://www.exploit-db.com/exploits/6477ExploitThird Party AdvisoryVDB Entry
http://www.securityfocus.com/bid/31218ExploitThird Party AdvisoryVDB Entry

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

Frequently asked

Is CVE-2008-4128 being actively exploited?

Yes. CVE-2008-4128 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 13 Jul 2026.

How severe is CVE-2008-4128?

CVE-2008-4128 has a CVSS 3.1 base score of 8.1, rated high. EPSS estimates a 33.9% probability of exploitation.

Which products are affected by CVE-2008-4128?

Affected products include Cisco iOS.

How do I fix CVE-2008-4128?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2008-4128 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

See how prioritisation works Book a demo

Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.