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CVE-2026-20288 is an improper input validation vulnerability in the web-based management interface of Cisco Integrated Management Controller (IMC). The flaw arises from insufficient validation of user-supplied input submitted through the management interface. A remote attacker who is authenticated to the interface with Admin privileges can supply crafted input that is interpreted in a way that enables arbitrary command execution on the underlying operating system. Successful exploitation results in execution as the root user, effectively turning the issue into both command execution and privilege escalation on the managed system.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
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.
3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
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.