When Dell offers BIOS upgrades they display the importance with a description:
Code:
This package contains the Dell system BIOS update for Dell XPS 9550. BIOS is a firmware that is embedded on a small memory chip on the computer's system board. It controls the keyboard, monitor, disk drives and other devices. This update addresses the Intel security advisory INTEL-SA-00185.
Code:
Dell XPS 15 9550 1.8.0 System BIOS
This package contains the BIOS version 1.8.0 for Dell XPS 15 9550. The package contains Intel ME firmware update to address Intel security advisories INTEL-SA-00125 (CVE-2018-3655), Intel-SA-00131 (CVE-2018-3643 and CVE-2018-3644) and INTEL-SA-00141 (CVE-2018-3657, CVE-2018-3658 and CVE-2018-3616). The package contains update for CPU microcode to address Intel Security Advisory INTEL-SA-00115 (CVE-2018-3639 and CVE-2018-3640). For more information regarding fixes and enhancements click View full driver details.
Fixes & Enhancements
Fixes:
- Updated Intel ME Firmware to address security advisories INTEL-SA-00125 (CVE-2018-3655), Intel-SA-00131 (CVE-2018-3643 and CVE-2018-3644) and INTEL-SA-00141 (CVE-2018-3657, CVE-2018-3658 and CVE-2018-3616).
- Updated CPU microcode to address Intel Security Advisory INTEL-SA-00115 (CVE-2018-3639 and CVE-2018-3640).
- Fixed the TPM configuration on a TPM startup error during S3 resume.
- Fixed the internal LCD display issue where it stays on after lid is closed.
- Updated Intel ME Firmware to address security advisory INTEL-SA-00118 (CVE-2018-3627).
Enhancements:
- Improved startup stability when Thunderbolt Technology Support is enabled.
- Prevents ghost key trigger while pressing multiple keys at the same time.
- Improved system enter Hibernate duration time when Dell Thunderbolt Dock TB16 is connected.
Version
Version 1.8.0, 1.8.0
Category
BIOS
Release date
05 Oct 2018
Last Updated
05 Oct 2018
Importance
Urgent
Code:
Dell XPS 15 9550 1.7.0 System BIOS
XPS 15 9550 1.7.0 BIOS
Fixes & Enhancements
Enhancements:
1. Improved the stability for the file transferring within pre-OS USB LAN connection
2. Improved keyboard typing experience with high typing speed.
Version
Version 1.7.0, 1.7.0
Category
BIOS
Release date
04 May 2018
Last Updated
04 May 2018
Importance
Recommended
Code:
Dell XPS 15 9550 1.6.1 System BIOS
XPS 15 9550 1.6.1 BIOS
Fixes & Enhancements
Fixes:
1. Updated to the latest CPU microcode to address CVE-2017-5715
2. Updated Intel ME Firmware to address security advisories INTEL-SA-00086 (CVE-2017-5705, CVE-2017-5708, CVE-2017-5711 & CVE-2017-5712) & INTEL-SA-00101(CVE-2017-13077, CVE-2017-13078 & CVE-2017-13080).
Version
Version 1.6.1, 1.6.1
Category
BIOS
Release date
06 Feb 2018
Last Updated
06 Feb 2018
Importance
Urgent
Code:
Dell XPS 15 9550 1.5.1 System BIOS
XPS 15 9550 1.5.1 BIOS
Fixes & Enhancements
1. Enhance audio quality when the brightness is adjusted
2. Extending battery support
3. Allows Dell Command Configure to implement the required Thunderbolt Sec Level settings without the need to access the BIOS.
4. Fixed a Bitlocker recovery issue when Dell Thunderbolt Dock is connected to the system, and PCR1 is selected in the Bitlocker Group Policy
Updated Dell Dock Port Type Classification in SMBIOS Table
5. Fixed a Bitlocker recovery issue when Dell Type C Dock or Dongle is connected to the system, and PCR2 is selected in the Bitlocker Group Policy
Improved PCR2 measurement consistency when a Dell Type C Dock or Dongle is connected.
6. Updated the handling of pre-boot authentication information by firmware.
Updated UEFI variable input validation.
Updated the handling of 3rd party Option ROM loading.
Updated SPI flash command configuration settings.
Version
Version 1.5.1, 1.5.1
Category
BIOS
Release date
14 Nov 2017
Last Updated
14 Nov 2017
Importance
Urgent
Code:
Dell XPS 15 9550 1.4.0 System BIOS
XPS 15 9550 1.4.0 BIOS
Fixes & Enhancements
1. Fixes system defense with wireless parameter will cause ME failure
2. System stability enhancements
3. To prevent user update ME Firmware to blacklist 11.6 ME firmware
4. Correct error message in Excalibur
5. Fix Bitlocker issue on Win7 ultimate/enterprise
Version
Version 1.4.0, 1.4.0
Category
BIOS
Release date
15 Sep 2017
Last Updated
15 Sep 2017
Importance
Urgent