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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) process. The issue is limited to the data plane and does not expose the control plane. The weakness is consistent with insufficient limitation or throttling of resource allocation, allowing attacker-driven request patterns to force TMM to retain or consume increasing amounts of memory until service stability is affected.
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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.
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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.
11 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An HTTP/2 denial-of-service vulnerability involving abuse of flow-control behavior that can cause memory amplification and crash vulnerable servers through memory exhaustion.
A denial-of-service vulnerability affecting F5 BIG-IP in which HTTP/2 flow-control can be abused by a remote, unauthenticated attacker to force buffering of unsent response data, leading to memory exhaustion and service crash or freeze.
A high-severity remote denial-of-service vulnerability in F5 BIG-IP and related BIG-IP Next products where crafted/undisclosed HTTP/2 requests can drive excessive memory utilization in TMM, degrading performance and potentially causing DoS.
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.