CVE-2020-11684
CRITICAL
9.1
CVSS Score
Published: September 14, 2020 at 01:32 PM UTC
Updated: June 17, 2026 at 02:50 AM UTC
1 product affected across 1 vendorAt91bootstrap
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Severity
CRITICAL9.1
Exploit prediction
EPSS 1%
Description
AT91bootstrap before 3.9.2 does not properly wipe encryption and authentication keys from memory before passing control to a less privileged software component. This can be exploited to disclose these keys and subsequently encrypt and sign the next boot stage (such as the bootloader).
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
3.7.2 ≤ v < 3.9.2
Affected range stops below 3.9.2, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (2)
x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/linux4sam/at91bootstrap/commit/45419497309ffbf27c17ea7938499aca99168927x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://labs.f-secure.com/advisories/microchip-at91bootstrap/CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- NONE
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-212
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