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CVE-2026-59762 is a denial-of-service vulnerability affecting F5 BIG-IP and related BIG-IP Next products when an HTTP/2 profile is configured on a virtual server. Crafted, undisclosed HTTP/2 requests can cause excessive memory resource utilization in the Traffic Management Microkernel (TMM) data plane process. The issue is consistent with insufficient limiting or throttling of resource allocation during HTTP/2 request handling, allowing memory consumption to grow until service quality degrades. The vulnerability is exposed through the data plane only and does not provide control plane exposure.
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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.
6 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.