# U-Boot vulnerabilities

Source: https://junglewise.ai/threats/technologies/u-boot-u-boot  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/u-boot-u-boot.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 3 vulnerabilities in U-Boot: 0 in the last 7 days and 3 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-74222, was published on 29 September 2026. Nothing in the last four weeks, down from 3 vulnerabilities in the four before.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 3
- All time: 3 (0 critical, 0 exploited in the wild)

## About U-Boot

U-Boot is a bootloader that initializes hardware and loads the operating system kernel on embedded systems.

## Latest U-Boot vulnerabilities

- [CVE-2026-74222: U-Boot use-after-free in lwIP wget HTTP callback](https://junglewise.ai/threats/cve-2026-74222-u-boot-before-2026-10-rc5-contains-a-use-after-free-vulnerability) (high, CVSS 8.2, published 29 Sep 2026)
- [CVE-2026-71974: U-Boot out-of-bounds write in read_slotted_partition()](https://junglewise.ai/threats/cve-2026-71974-u-boot-before-2026-10-rc3-contains-an-out-of-bounds-write) (medium, CVSS 4.8, published 29 Sep 2026)
- [CVE-2026-71972: U-Boot out-of-bounds write in video_display_rle8_bitmap](https://junglewise.ai/threats/cve-2026-71972-u-boot-through-2026-10-rc5-contains-an-out-of-bounds-write) (medium, CVSS 5.9, published 29 Sep 2026)

## Most severe U-Boot vulnerabilities

- [CVE-2026-74222: U-Boot use-after-free in lwIP wget HTTP callback](https://junglewise.ai/threats/cve-2026-74222-u-boot-before-2026-10-rc5-contains-a-use-after-free-vulnerability) (high, CVSS 8.2, published 29 Sep 2026)
- [CVE-2026-71972: U-Boot out-of-bounds write in video_display_rle8_bitmap](https://junglewise.ai/threats/cve-2026-71972-u-boot-through-2026-10-rc5-contains-an-out-of-bounds-write) (medium, CVSS 5.9, published 29 Sep 2026)
- [CVE-2026-71974: U-Boot out-of-bounds write in read_slotted_partition()](https://junglewise.ai/threats/cve-2026-71974-u-boot-before-2026-10-rc3-contains-an-out-of-bounds-write) (medium, CVSS 4.8, published 29 Sep 2026)

## Vulnerabilities per week

Nothing in the last four weeks, down from 3 vulnerabilities in the four before.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 3 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "U-Boot vulnerabilities", https://junglewise.ai/threats/technologies/u-boot-u-boot, 9 November 2026.