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CVE-2026-20283 is an authenticated remote command-injection vulnerability in the Cisco Identity Services Engine (ISE) IPsec Open API endpoint. Insufficient validation of user-supplied input allows an attacker with valid administrative credentials to submit crafted API input and execute arbitrary commands on the underlying operating system. Exploitation requires a node with multiple network interfaces, including an active IPsec tunnel. The vulnerability is present only when an IPsec VTI tunnel is created through the API. The resulting privilege level can be readily escalated to root.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
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No public exploit code observed for this vulnerability.
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.
8 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An authenticated remote command-injection vulnerability in the Cisco Identity Services Engine (ISE) IPsec Open API endpoint. It requires valid administrative credentials and a node with more than one network interface, including an active IPsec tunnel. Cisco rates its security impact High because root access is easy to obtain from the achieved privilege level.
A medium-severity Cisco Identity Services Engine vulnerability that Cisco considers high risk because the privileges obtained could readily lead to root access.
An authenticated remote arbitrary-command-injection vulnerability in the IPsec Open API endpoint of Cisco Identity Services Engine (ISE), caused by insufficient validation of user-supplied input. Cisco rates the security impact High because the achieved privilege level can be escalated to root easily.
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.