CVE-2023-4030
Lenovo Thinkpad T15 Gen 2 Firmware
Raw vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HCVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.
Summary
CVE-2023-4030 is a high-severity Failing Open (CWE-636) vulnerability in Lenovo Thinkpad T15 Gen 2 Firmware. Its CVSS base score is 8.4 (High).
Operationally, ranked at the 8th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-53923
Vulnerability Data
A vulnerability was reported in BIOS for ThinkPad P14s Gen 2, P15s Gen 2, T14 Gen 2, and T15 Gen 2 that could cause the system to recover to insecure settings if the BIOS becomes corrupt.
- CWE(s)
Related Threats
CVEs Like This One
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Ensures audit logging continues on primary failure instead of failing open with no logging capability.
Supports failing securely by requiring alerts and configurable actions (e.g., shutdown) when the audit mechanism fails instead of continuing without it.
Entering safe mode when conditions are detected prevents failing open and continuing normal operation in a potentially exploitable state.
Ensures security functions remain enforced via alternatives instead of defaulting to an insecure state when the primary means fails.
Fail-safe-defaults principle prevents systems from failing open.
Directly requires transition to a known (secure) state on failure, preventing fail-open behavior.
Standby components and explicit exchange criteria enforce a controlled, secure failover instead of failing open.
Directly implements fail-safe (fail-closed/secure) behavior on indicated failures, preventing the system from defaulting to an insecure open state.
Hardening callouts derived
DISA STIG baselines are authored against specific weaknesses. Where this CVE cites a broad weakness class, the mapping is not asserted at that abstraction (owner ruling, 2026-09-25: grade only at Base and below), so no rule is shown here rather than a rule shown against the wrong grain.
- No fine-grained STIG row for CWE-636, a class-level weakness, and none of its children carries one either.