CVE-2021-3453
MEDIUMCVSS 4.6/10EPSS 0.24%
Last modified
CVE-2021-3453 is a medium-severity vulnerability rated 4.6/10 on the CVSS scale. Some Lenovo Notebook, ThinkPad, and Lenovo Desktop systems have BIOS modules unprotected by Intel Boot Guard that could allow an attacker with physical access the ability to write to the SPI flash storage.. EPSS estimates a 0.24% chance of exploitation in the next 30 days.
Description
Some Lenovo Notebook, ThinkPad, and Lenovo Desktop systems have BIOS modules unprotected by Intel Boot Guard that could allow an attacker with physical access the ability to write to the SPI flash storage.
Metrics
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Lenovo | Thinkpad Helix Firmware | n17etb4w |
| Lenovo | Thinkpad T550 Firmware | n11et53w |
| Lenovo | Thinkpad W550s Firmware | n11et53w |
| Lenovo | Thinkpad X1 Carbon 3rd Gen Firmware | n14et55w |
| Lenovo | Thinkpad X250 Firmware | n10et62w |
| Lenovo | Thinkpad Yoga 15 Firmware | n19et65w |
| Lenovo | 730s-13iml Firmware | All versions |
| Lenovo | Ideapad 1-11igl05 Firmware | All versions |
| Lenovo | Ideapad 1-14igl05 Firmware | All versions |
| Lenovo | Ideapad S940-14iil Firmware | All versions |
| Lenovo | Ideapad S940-14iwl Firmware | All versions |
| Lenovo | Ideapad Slim 1-11ast-05 Firmware | All versions |
| Lenovo | Ideapad Slim 1-14ast-05 Firmware | All versions |
| Lenovo | V130-15igm Firmware | All versions |
| Lenovo | V330-15ikb Firmware | All versions |
| Lenovo | V330-15isk Firmware | All versions |
| Lenovo | Yoga S730-13iml Firmware | All versions |
| Lenovo | Yoga S940-14iil Firmware | All versions |
| Lenovo | Yoga S940-14iwl Firmware | All versions |
| Lenovo | Ideacentre Aio 5-24imb05 Firmware | < 2021-09-30 |
| Lenovo | Ideacentre Aio 5-74imb05 Firmware | < 2021-09-30 |
References
- https://support.lenovo.com/us/en/product_security/LEN-65529Vendor Advisory
- https://support.lenovo.com/us/en/product_security/LEN-65529Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-3453?
Some Lenovo Notebook, ThinkPad, and Lenovo Desktop systems have BIOS modules unprotected by Intel Boot Guard that could allow an attacker with physical access the ability to write to the SPI flash storage.
How severe is CVE-2021-3453?
CVE-2021-3453 has a CVSS score of 4.6/10 (MEDIUM severity). The EPSS model estimates a 0.24% probability of exploitation in the next 30 days.
How do I fix CVE-2021-3453?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2021-3453?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST