Loading vulnerability…
CVE-2021-31440 is a local privilege-escalation vulnerability in the Linux kernel's handling of eBPF programs, reported as affecting Linux kernel 5.11.15. Insufficient validation of user-supplied eBPF programs can permit a crafted program to bypass intended safety or privilege constraints before execution in kernel context. The issue was tracked as ZDI-CAN-13661 and addressed upstream by the associated kernel fix.
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
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 valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
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.
4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Linux kernel local privilege-escalation vulnerability in eBPF program handling.
Linux kernel local privilege-escalation vulnerability in eBPF program handling.
An eBPF-related vulnerability referenced as potentially enabling a container escape.
A local privilege-escalation vulnerability in the Linux kernel's handling of eBPF programs. A low-privileged local attacker can exploit insufficient validation of user-supplied eBPF programs to execute arbitrary code in kernel context.
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.