Incomplete Cleanup Affecting u-boot package, versions <2021.01+dfsg-3ubuntu0~20.04.6+esm1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU2004-UBOOT-20340856
- published7 Oct 2026
- disclosed29 Sept 2026
Introduced: 29 Sep 2026
NewCVE-2026-15390 (opens in a new tab)How to fix?
Upgrade Ubuntu:20.04 u-boot to version 2021.01+dfsg-3ubuntu0~20.04.6+esm1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream u-boot package and not the u-boot package as distributed by Ubuntu.
See How to fix? for Ubuntu:20.04 relevant fixed versions and status.
Das U-Boot with CONFIG_IP_DEFRAG=y parameter fails to clear IP reassembly state after delivering a complete datagram. An attacker who can deliver fragmented IP traffic can execute arbitrary code by sending duplicated last-fragment IP packets.
This issue was fixed in commit b1aec609bb5e0d08c25c888c91935287ab4ee5fa in version 2026.07.