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CVE-2008-4128 is a set of cross-site request forgery vulnerabilities in the HTTP Administration component of Cisco IOS 12.4, including deployments on Cisco 871 Integrated Services Routers. The web management interface exposes privileged IOS command execution paths through administrative HTTP endpoints and does not adequately validate request origin or implement anti-CSRF protections. As a result, a remote attacker can induce an authenticated administrator’s browser to submit crafted requests that invoke privileged commands through the web interface, including execution and configuration actions. Documented attack paths include abuse of endpoints that map to privilege-level command execution and HTTP configuration functions. Successful exploitation can result in arbitrary command execution in the context of the device’s administrative interface.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
43 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Cisco IOS vulnerability listed among vulnerabilities actively exploited or operationally weaponized in July 2026.
A specific Cisco device vulnerability that the advisory says Russian state-sponsored actors have exploited; it is significant here because it is listed in CISA’s Known Exploited Vulnerabilities catalog and tied to ongoing targeting of networking devices.
A legacy cross-site request forgery vulnerability in Cisco IOS that remains exploitable on exposed older networking equipment.
An older end-of-life Cisco vulnerability that the advisory says FSB Center 16 actors occasionally weaponize against vulnerable routers.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.