New Check Point flaw lets hackers execute code with root privileges
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Check Point Software disclosed a critical vulnerability, CVE-2026-91843, that allows unauthenticated attackers to achieve remote code execution with root privileges on Security Management Server and Log Server instances due to a stack-based buffer overflow in the login process. The vulnerability is exploitable without user interaction and affects all configurations, regardless of VPN usage. While not currently exploited in the wild, Check Point has provided detection guidance via specific log alerts and recommends immediate patching or implementation of mitigations such as restricting access to trusted IPs. The company recently patched other critical flaws, including CVE-2026-85103 and CVE-2026-85102, which are also under active exploitation threat.
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