USN-8930-1: u-boot Ubuntu

Published
Published 14-10-2026Last modified 17-10-2026

Vulnerability summary

USN-8930-1 is a vulnerability in u-boot Ubuntu with no CVSS score yet.

Overall risk
0/100
0100
Minimal · default modelHow is this calculated?
CVSS score
Not scored
010
No CVSS score recorded
EPSS scoreNot scoredRisk metrics not yet published.
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 4 · Downstream 0 · Related 4
CVE-2026-74220CVE-2026-74221CVE-2026-74222CVE-2026-74225

Timeline

  1. 14-10-2026
    PublishedVulnerability first disclosed.
  2. 17-10-2026
    Last modifiedVulnerability information updated.

Description

u-boot vulnerabilities Shahriyar Jalayeri and Mehrun P. Hunter discovered that U-Boot incorrectly handled certain NFS READ and NFS READLINK responses. An attacker could possibly use this issue to trigger a buffer overflow, resulting in a denial of service or arbitrary code execution. (CVE-2026-74220, CVE-2026-74221) Shahriyar Jalayeri and Mehrun P. Hunter discovered that U-Boot incorrectly handled certain HTTP data storage failures in its lwIP implementation. An attacker could possibly use this issue to trigger a use-after-free, resulting in a denial of service. This issue only affected Ubuntu 24.04 LTS and Ubuntu 26.04 LTS. (CVE-2026-74222) Shahriyar Jalayeri and Mehrun P. Hunter discovered that U-Boot did not properly validate certain DHCPv6 option lengths during network boot. An attacker could possibly use this issue to trigger out-of-bounds memory access, resulting in a denial of service. This issue only affected Ubuntu 24.04 LTS and Ubuntu 26.04 LTS. (CVE-2026-74225)

CVSS metrics

Risk metrics not yet published.

EPSS trend

No EPSS score has been published for this record yet.

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu1 product
  • u-boot< 2016.01+dfsg1-2ubuntu5+esm2 | < 2020.10+dfsg-1ubuntu0~18.04.3+esm2 | < 2021.01+dfsg-3ubuntu0~20.04.6+esm2 | < 2022.01+dfsg-2ubuntu2.9 | < 2025.10-0ubuntu0.24.04.4 | < 2025.10-0ubuntu2.2

1 vendor · 1 product

References

5 links