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CVE-2026-63089 is a credential disclosure vulnerability in WireGuard Easy (wg-easy) through version 15.3.0 caused by cryptographically weak generation of one-time link tokens. The application derives the token using CRC32 over a random value constrained to the range 0-999, reducing the effective search space to at most 1000 candidate tokens per client ID. An unauthenticated network attacker can enumerate candidate tokens against the one-time-link configuration route, which is exposed without authentication, lacks rate limiting, and does not validate token expiration. Successful brute-forcing of a valid token allows retrieval of a WireGuard peer's sensitive configuration material, including the peer's private key and preshared key, enabling subsequent impersonation of that peer on the VPN network.
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No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
4 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.