- Description
- A vulnerability in the Software SMI handler (SwSmiInputValue 0xB2) allows a local attacker to control the RBX register, which is used as an unchecked pointer in the CommandRcx0 function. If the contents at RBX match certain expected values (e.g., '$DB$' or '2DB$'), the function performs arbitrary writes to System Management RAM (SMRAM), leading to potential privilege escalation to System Management Mode (SMM) and persistent firmware compromise.
- Source
- cret@cert.org
- NVD status
- Awaiting Analysis
CVSS 3.1
- Type
- Secondary
- Base score
- 8.2
- Impact score
- 6
- Exploitability score
- 1.5
- Vector string
- CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
- Severity
- HIGH
- Hype score
- Not currently trending
Gigabyte motherboards vulnerable to UEFI malware bypassing Secure Boot Over 240 Gigabyte motherboard models are affected by four high-severity UEFI firmware vulnerabilities (CVE-2025-7026 to -7029) that allow attackers to plant bootkits with root-level access, invisible to the
@dCypherIO
15 Jul 2025
20 Impressions
0 Retweets
0 Likes
0 Bookmarks
0 Replies
0 Quotes
⚠️Vulnerabilidades del firmware UEFI de Gigabyte ❗CVE-2025-7026 ❗CVE-2025-7027 ❗CVE-2025-7028 ❗CVE-2025-7029 ➡️Más info: https://t.co/MCf1gNja6H https://t.co/GeHqu4tGdo
@CERTpy
15 Jul 2025
131 Impressions
0 Retweets
0 Likes
0 Bookmarks
0 Replies
0 Quotes