Gecko Standalone Bootloader vulnerability may allow bypassing application secure boot in some Series 2 devices
Priority HIGH 72CWE-119Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
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.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00934 60th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| silabs.com | Gecko Bootloader | up to 4.0.1 | — | No fix listed | CNA |
- Gecko Bootloader Vendorsilabs.com Affected up to 4.0.1 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:silabs:gecko_bootloader:*:*:*:*:*:*:*:* | up to 4.0.1 | Vulnerable | silabs.com |
- cpe:2.3:a:silabs:gecko_bootloader:*:*:*:*:*:*:*:* Versions up to 4.0.1 Vulnerable ·silabs.com
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2022-24936
- 2026-10-03 Alias added: GHSA-v3qm-xpj7-89x6
References
More silabs.com Gecko Bootloader vulnerabilities
- TI-2023-03749 Second Stage Gecko Bootloader GBL Parser Buffer Overrun Vulnerability CVSS 3.1CRITICAL 9.8
- TI-2023-03255 Integer overflow in Silicon Labs Gecko Bootloader leads to unbounded memory access CVSS 3.1HIGH 7.8
Sources
- CVE-2022-24936 · CVE Program
- CVE-2022-24936 · NVD
- FIRST EPSS
- GHSA-v3qm-xpj7-89x6 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences