CVE-2026-74222: U-Boot before 2026.10-rc5 Use-After-Free in lwIP wget Receive Callback
Fixed in 2026.10-rc5 · Affected: u-boot before 2026.10-rc5 · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 22% of scored CVEs
DescriptionCVE.org
U-Boot before 2026.10-rc5 contains a use-after-free vulnerability in the httpc_recv_cb() function within the lwIP wget implementation. When HTTP data storage fails, the callback frees the connection PCB but returns ERR_BUF instead of ERR_ABRT, causing the TCP input path to access released 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-rc5
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-2026-74222 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.