Critical
Out-of-bounds write in Das U-Boot
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.
Announced Group revision 1
Original source ↗CVE-2026-15390
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-15390
Das U-Boot
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://source.denx.de/u-boot/u-boot",
"vendor": "DENX Software Engineering",
"modules": [
"__net_defragment()"
],
"product": "Das U-Boot",
"versions": [
{
"status": "affected",
"changes": [
{
"at": "commit b1aec609bb5e0d08c25c888c91935287ab4ee5fa",
"status": "unaffected"
}
],
"version": "2009.08",
"versionType": "date",
"lessThanOrEqual": "2026.07"
}
],
"programFiles": [
"net.c"
],
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-15390
Source reference:
/cveMetadata/cveId
Publisher severity
critical
Source reference: /containers/cna/metrics
- Event
- #3432 · Revision 1
- Added to Heist Feed
- Publisher date