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CVE-2026-0288 is a high-severity vulnerability affecting the User-ID Terminal Server Agent (TSA) component in Palo Alto Networks PAN-OS. The issue is caused by multiple buffer overflow flaws in the TSA component. An unauthenticated attacker with network access to the TSA IP address and listening port can send specially crafted network traffic that triggers memory corruption in the vulnerable component. According to the provided content, successful exploitation may cause a denial-of-service condition and could potentially lead to arbitrary code execution. The vulnerability affects PAN-OS deployments only when at least one Terminal Server Agent entry is configured under Device > User Identification > Terminal Server Agents. Panorama and Cloud NGFW on AWS are not affected.
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No public exploit code observed for this vulnerability.
9 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
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Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.