What is CVE-2022-24936?

CVE-2022-24936 is a high-severity vulnerability in Silabs Gecko Bootloader, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.3/10. Published 2022-11-02.

How severe is CVE-2022-24936?

High severity. CVSS v3 base score is 8.3 out of 10.

Buffer overflow in Silabs Gecko Bootloader

CVE-2022-24936

Out-of-Bounds error in GBL parser in Silicon Labs Gecko Bootloader version 4.0.1 and earlier allows attacker to overwrite flash Sign key and OTA decryption key via malicious bootloader upgrade.

Vulnerability class: Buffer Overflow

Published 2022-11-02 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.3 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H.

EPSS exploit prediction

EPSS: 0.008 (56.3th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 56.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: +0.000

Affected products

Silabs Gecko Bootloader
Silabs.com Gecko Bootloader — versions 0

Weakness classification (CWE)

References

community.silabs.com/sfc/servlet.shepherd/document/download/0698Y00000Gdop4QAB (Permissions Required, vendor-advisory, Vendor Advisory)
github.com/SiliconLabs/gecko_sdk/blame/2e82050dc8823c9fe0e8908c1b2666fb83056230… (Exploit, Third Party Advisory, patch)

Frequently asked questions

What is CVE-2022-24936?: CVE-2022-24936 is a high-severity vulnerability in Silabs Gecko Bootloader, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.3/10. Published 2022-11-02.
How severe is CVE-2022-24936?: High severity. CVSS v3 base score is 8.3 out of 10.