How severe is CVE-2024-1633?

CVE-2024-1633 has a CVSS 3.x base score of 2.0, rated low severity. It is exploitable over physical access with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2024-1633 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-1633?

CVE-2024-1633 affects Renesas Arm-trusted-firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-1633?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2024-1633 have an EU (EUVD) identifier?

Yes. CVE-2024-1633 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-17372.

When was CVE-2024-1633 published?

CVE-2024-1633 was published on 2024-02-19 and last updated on 2026-06-17.

CVE-2024-1633

CVE-2024-1633 is a low-severity vulnerability in Renesas Arm-trusted-firmware with a CVSS 3.x base score of 2.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-190.

Key facts

Severity: Low (CVSS 3.x base score 2.0)
EPSS exploit prediction: 0% (4th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-17372
Weakness: CWE-190
Affected product: Renesas Arm-trusted-firmware
Published: 2024-02-19
Last modified: 2026-06-17

Description

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 result in bypass of secure boot. Affected git version from c2f286820471ed276c57e603762bd831873e5a17 until (not

Frequently asked questions

What is CVE-2024-1633?: 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 result in bypass of secure boot. Affected git version from c2f286820471ed276c57e603762bd831873e5a17 until (not
How severe is CVE-2024-1633?: CVE-2024-1633 has a CVSS 3.x base score of 2.0, rated low severity. It is exploitable over physical access with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2024-1633 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-1633?: CVE-2024-1633 affects Renesas Arm-trusted-firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-1633?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-1633 have an EU (EUVD) identifier?: Yes. CVE-2024-1633 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-17372.
When was CVE-2024-1633 published?: CVE-2024-1633 was published on 2024-02-19 and last updated on 2026-06-17.

References

https://asrg.io/security-advisories/CVE-2024-1633/

Affected products (1)

cpe:2.3:o:renesas:arm-trusted-firmware:rcar_gen3_2.5:*:*:*:*:*:*:*

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