Loading vulnerability…
CVE-2026-50752 is an improper certificate validation vulnerability in Check Point Security Gateway and Spark Firewall implementations of the deprecated IKEv1 key exchange protocol. The flaw affects site-to-site VPN connections that use IKEv1 with certificate-based authentication. A weakness in the IKEv1 certificate validation logic during VPN negotiation can allow an unauthenticated attacker who is positioned as a man-in-the-middle between VPN peers to bypass certificate validation and impersonate a VPN endpoint. Successful exploitation can undermine the trust model of the tunnel and expose traffic traversing the site-to-site VPN to interception or modification.
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.
42 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A related certificate validation vulnerability affecting site-to-site VPN connections that use the legacy IKEv1 key exchange protocol.
A related Check Point vulnerability with adversary-in-the-middle risk that the article says was not exploited in the wild.
A related Check Point IKEv1 certificate-validation flaw that could enable adversary-in-the-middle attacks against site-to-site VPN connections.
Related site-to-site VPN adversary-in-the-middle risk vulnerability mentioned as connected to the Check Point campaign, but not exploited in the wild in this content.
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.