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Fencer Vulns
high 7.8

CVE-2020-10648 json

Das U-Boot through 2020.01 allows attackers to bypass verified boot restrictions and subsequently boot arbitrary images by providing a craf…

published 2020-03-19 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-3096

cvss
7.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.4%
EPSS 1.4% chance of exploitation in 30 days, percentile 72%
public exploits
0
none known

Summary

Das U-Boot through 2020.01 allows attackers to bypass verified boot restrictions and subsequently boot arbitrary images by providing a crafted FIT image to a system configured to boot the default configuration.

Patch / fix

  • Siemens RUGGEDCOM ROX MX5000 V2.17.1
  • Siemens RUGGEDCOM ROX MX5000RE V2.17.1
  • Siemens RUGGEDCOM ROX RX1400 V2.17.1
  • Siemens RUGGEDCOM ROX RX1500 V2.17.1
  • Siemens RUGGEDCOM ROX RX1501 V2.17.1
  • Siemens RUGGEDCOM ROX RX1510 V2.17.1
  • Siemens RUGGEDCOM ROX RX1511 V2.17.1
  • Siemens RUGGEDCOM ROX RX1512 V2.17.1
  • Siemens RUGGEDCOM ROX RX1524 V2.17.1
  • Siemens RUGGEDCOM ROX RX1536 V2.17.1
  • Siemens RUGGEDCOM ROX RX5000 V2.17.1
  • u-boot Debian 14, Debian 13, Debian 12 2020.04+dfsg-1

debian advisories DEBIAN-CVE-2020-10648

  • u-boot Ubuntu 18.04 LTS 2020.10+dfsg-1ubuntu0~18.04.2
  • u-boot Ubuntu 20.04 LTS 2021.01+dfsg-3ubuntu0~20.04.3

ubuntu advisories UBUNTU-CVE-2020-10648

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • u-boot SLES 12 SP3-LTSS, Enterprise Storage 5 2016.07-12.3.1
  • u-boot-rpi3 SLES 12 SP3-LTSS, Enterprise Storage 5 2016.07-12.3.1
  • u-boot SLES for SAP 15, SLES 15-LTSS, SLE High Performance Computing 15-LTSS +1 more 2018.03-4.6.1
  • u-boot-rpi3 SLES 15-LTSS, SLE High Performance Computing 15-LTSS, SLE High Performance Computing 15-ESPOS 2018.03-4.6.2
  • u-boot SLE Module for Basesystem 15 SP1 2019.01-7.10.1
  • u-boot-rpi3 SLE Module for Basesystem 15 SP1 2019.01-7.10.2
  • u-boot SLES for SAP 12 SP5, SLES 12 SP5 2019.01-5.3.1
  • u-boot-rpi3 SLES for SAP 12 SP5, SLES 12 SP5 2019.01-5.3.1

suse advisories SUSE-SU-2020:3474-1SUSE-SU-2020:3283-1SUSE-SU-2020:3282-1SUSE-SU-2020:3256-1SUSE-SU-2020:3255-1SUSE-SU-2020:3161-1

  • u-boot openSUSE Leap 15.1 2019.01-lp151.6.13.1
  • u-boot openSUSE Leap 15.2 2020.01-lp152.9.9.1

opensuse advisories openSUSE-SU-2020:1930-1openSUSE-SU-2020:1869-1

  • uboot-tools Arch Linux 2020.04-1

arch linux advisories AVG-1117

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-26-134-16 updated cvss 7.8

Siemens Ruggedcom Rox

  • Siemens RUGGEDCOM ROX MX5000 < 2.17.1 Siemens RUGGEDCOM ROX MX5000RE < 2.17.1 Siemens RUGGEDCOM ROX RX1400 < 2.17.1 Siemens RUGGEDCOM ROX RX1500 < 2.17.1 Siemens RUGGEDCOM ROX RX1501 < 2.17.1 Siemens RUGGEDCOM ROX RX1510 < 2.17.1
    +5 more products
    Siemens RUGGEDCOM ROX RX1511 < 2.17.1 Siemens RUGGEDCOM ROX RX1512 < 2.17.1 Siemens RUGGEDCOM ROX RX1524 < 2.17.1 Siemens RUGGEDCOM ROX RX1536 < 2.17.1 Siemens RUGGEDCOM ROX RX5000 < 2.17.1
    affected: fixed in V2.17.1 support.industry.siemens.com

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

Exploit prediction

1.40% chance of exploitation in the next 30 days, higher than 72% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • labs.f-secure.com https://labs.f-secure.com/advisories/das-u-boot-verified-boot-bypass/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Affected products

  • Siemens RUGGEDCOM ROX MX5000
  • Siemens RUGGEDCOM ROX MX5000RE
  • Siemens RUGGEDCOM ROX RX1400
  • Siemens RUGGEDCOM ROX RX1500
  • Siemens RUGGEDCOM ROX RX1501
  • Siemens RUGGEDCOM ROX RX1510
  • Siemens RUGGEDCOM ROX RX1511
  • Siemens RUGGEDCOM ROX RX1512
  • Siemens RUGGEDCOM ROX RX1524
  • Siemens RUGGEDCOM ROX RX1536
  • Siemens RUGGEDCOM ROX RX5000

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.