PatchTheCVECVE-2024-1633: During the secure boot, bl2 (the second stage of the bootloader) loops over images defined in the table “bl2_m
CVE-2024-1633 is a low-severity flaw (CVSS 2.0) affecting arm-trusted-firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
During the secure boot, bl2 (the second stage of the bootloader) loops over images defined in the table “bl2_mem_params_descs”. For each image, the bl2 reads the image length and destination from the image’s certificate. Because of the way of reading from the image, which base on 32-bit unsigned integer value, it can result to an integer overflow. An attacker can bypass memory range restriction and write data out of buffer bounds, which could res
Why this priority
- No elevated risk signals yet
No fix is published yet: follow the downgrade or mitigation steps.
Risk facts
| CVSS score | 2.0 (Low) |
| Attack vector | Physical |
| Attack complexity | High |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.1% (top 96%) |
| CISA exploited list | No |
| Weakness | CWE-190 |
| Published | 2024-02-19 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2024-1633?
arm-trusted-firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2024-1633 being exploited?
CVE-2024-1633 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2024-1633 affect?
CVE-2024-1633 affects arm-trusted-firmware. Severity is low (CVSS 2.0). During the secure boot, bl2 (the second stage of the bootloader) loops over images defined in the table “bl2_mem_params_descs”. For each image, the bl2 reads the image length and destination from the image’s certificate. Because of the way
How urgent is CVE-2024-1633?
Priority 8/100. No elevated risk signals yet.
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