Loading vulnerability…
CVE-2021-4028 is a use-after-free vulnerability in the Linux kernel RDMA Communications Manager listener implementation. A local attacker can create a socket listening on a high-numbered port and trigger use of a freed list element in the RDMA listener path. An attacker able to execute local code may use the flaw to crash the system or potentially elevate privileges.
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 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.
28 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Linux kernel use-after-free vulnerability in RDMA listen() affecting the Rocky Linux 8 kernel packages referenced by CIQ advisory crlsa-2022_1555.
A Linux kernel use-after-free vulnerability in RDMA listen().
A Linux kernel use-after-free vulnerability in RDMA listen().
Linux kernel use-after-free vulnerability in RDMA listen().
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.