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CVE-2020-25645 is a flaw in Linux kernel versions before 5.9-rc7 affecting the interaction between Geneve tunneling and IPsec. When IPsec policy is configured to encrypt only the UDP port used by a Geneve tunnel, the kernel may route encapsulated tunnel traffic outside the intended IPsec-protected path. As a result, traffic exchanged between Geneve endpoints can be transmitted in cleartext despite the configured IPsec policy.
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No public exploit code observed for this vulnerability.
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5 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Linux kernel vulnerability addressed by this Red Hat Enterprise Linux 8 security update; no further technical details are provided in the content.
A Linux kernel flaw that may leave Geneve/IPsec traffic unencrypted between two Geneve endpoints.
A Linux kernel flaw that can leave Geneve/IPsec traffic unencrypted between Geneve endpoints.
A Linux kernel flaw affecting GENEVE tunnels used with port-specific IPsec policies. It can cause tunneled traffic intended for IPsec protection to be sent unencrypted, exposing its contents to an on-path observer and compromising confidentiality.
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.