CVE-2026-58638
Low
No strong exploitation signal.
CVSS base
6.0
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
EPSS — probability of exploitation (30 days)
0.2%
14.7th percentile
CISA KEV
Not listed
Weakness / dates
CWE-325
Published 2026-07-14 · modified 2026-07-22
CVSS breakdown
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
| Attack Vector | L | Local |
| Attack Complexity | L | Low |
| Privileges Required | H | High |
| User Interaction | N | None |
| Scope | U | Unchanged |
| Confidentiality | H | High |
| Integrity | H | High |
| Availability | N | None |
Timeline
- 2026-07-14 — Published (NVD)
- 2026-07-22 — Last modified (NVD)
Description
Missing cryptographic step in Windows Boot Loader allows an authorized attacker to bypass a security feature locally.