All news with #bmc tag

New Supermicro BMC Flaws Expose Firmware Validation

🔒 Researchers have published details of two high-severity vulnerabilities in Supermicro BMC firmware — CVE-2025-7937 and CVE-2025-6198 — each rated CVSS 7.2. Both flaws weaken firmware validation and the implementation of the Root of Trust, allowing an attacker with administrative access to install or manipulate signed firmware and gain persistent, low-level control of affected servers. Binarly found one issue while testing Supermicro’s January patch for a related flaw and advises prompt patching, strict firmware integrity checks, and enabling hardware RoT where available to mitigate risk.

New Supermicro BMC Flaws Enable Persistent Backdoors

🔐 Researchers from Binarly disclosed multiple firmware vulnerabilities in Supermicro Baseboard Management Controllers (BMCs) that allow attackers to load unofficial images and install persistent backdoors. A bypass for a previously patched issue (CVE-2024-10237) and a new flaw (CVE-2025-6198) let adversaries manipulate signed regions so digests and signatures still validate. A related confirmed issue is tracked as CVE-2025-7937. Supermicro has released firmware updates; administrators must identify affected models and apply fixes promptly.

Two Supermicro BMC Flaws Allow Firmware RoT Bypass

🔒 Cybersecurity researchers disclosed two medium-severity vulnerabilities in Supermicro Baseboard Management Controller (BMC) firmware that allow crafted images to bypass signature verification and install malicious firmware. The issues, tracked as CVE-2025-7937 (CVSS 6.6) and CVE-2025-6198 (CVSS 6.4), exploit manipulation of embedded validation tables — fwmap and sig_table — to trick the verification logic into accepting unsigned regions. Binarly reported the findings, detailed how the auth_bmc_sig flow on an X13SEM-F board can be subverted, and recommends rotating signing keys, hardening validation logic, and applying vendor firmware updates promptly.