CVE-2020-10648
CVE-2020-10648 is a high-severity vulnerability in Denx U-boot with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- CVSS v2: 6.8
- EPSS exploit prediction: 1% (67th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-20
- Affected product: Denx U-boot
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is CVE-2020-10648?
- 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.
- How severe is CVE-2020-10648?
- CVE-2020-10648 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2020-10648 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-10648?
- CVE-2020-10648 primarily affects Denx U-boot. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2020-10648?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2020-10648 published?
- CVE-2020-10648 was published on 2020-03-19 and last updated on 2026-06-17.
References
- http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00030.html
- http://www.openwall.com/lists/oss-security/2020/03/18/5
- https://github.com/u-boot/u-boot/commits/master
- https://labs.f-secure.com/advisories/das-u-boot-verified-boot-bypass/
- https://cert-portal.siemens.com/productcert/html/ssa-577017.html
Affected products (3)
- cpe:2.3:a:denx:u-boot:*:*:*:*:*:*:*:*
- cpe:2.3:a:denx:u-boot:2020.01:-:*:*:*:*:*:*
- cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*
More vulnerabilities in Denx U-boot
- CVE-2022-34835 — Critical (CVSS 9.8): In Das U-Boot through 2022.07-rc5, an integer signedness error and resultant stack-based buffer overflow in the "i2c…
- CVE-2022-30767 — Critical (CVSS 9.8): nfs_lookup_reply in net/nfs.c in Das U-Boot through 2022.04 (and through 2022.07-rc2) has an unbounded memcpy with a…
- CVE-2020-8432 — Critical (CVSS 9.8): In Das U-Boot through 2020.01, a double free has been found in the cmd/gpt.c do_rename_gpt_parts() function. Double…
- CVE-2019-14204 — Critical (CVSS 9.8): An issue was discovered in Das U-Boot through 2019.07. There is a stack-based buffer overflow in this nfs_handler reply…
- CVE-2019-14203 — Critical (CVSS 9.8): An issue was discovered in Das U-Boot through 2019.07. There is a stack-based buffer overflow in this nfs_handler reply…
- CVE-2019-14202 — Critical (CVSS 9.8): An issue was discovered in Das U-Boot through 2019.07. There is a stack-based buffer overflow in this nfs_handler reply…
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