CVE-2026-71971: U-Boot before 2026.10-rc3 Out-of-Bounds Write in IP Fragment Reassembly
Fixed in 2026.10-rc3 · Affected: u-boot before 2026.10-rc3 · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 31% of scored CVEs
DescriptionCVE.org
U-Boot before 2026.10-rc3 with CONFIG_IP_DEFRAG enabled contains an out-of-bounds write vulnerability in the __net_defragment() function in net/net.c. Remote attackers can send a crafted IP fragment with non-zero offset and More-Fragments flag set during netboot to corrupt adjacent memory and crash the bootloader.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- u-boot · u-bootbefore 2026.10-rc3
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- u-boot
- Published
- September 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-71971 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.