CVE-2024-4760 | Voltage glitch during startup of the EEFC NVM controller can bypass the security bit

A voltage glitch during the startup of EEFC NVM controllers on Microchip SAM E70/S70/V70/V71, SAM G55, SAM 4C/4S/4N/4E, and SAM 3S/3N/3U microcontrollers allows access to the memory bus via the debug interface even if the security bit is set.

Published: 2024-05-16 Last update: 2026-04-15 Assigner: dc3f6da9-85b5-4a73-84a2-2ec90b40fca5 Source: dc3f6da9-85b5-4a73-84a2-2ec90b40fca5
NVD Status：Deferred，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-4760 is rated Low Risk (39.9/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.20%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2024-4760

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-11-21 0.11% 0.20% +0.08%
2 2025-11-18 0.20% 0.11% -0.08%
3 2025-10-05 — 0.20% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-4760

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.3 3.1 MEDIUM
CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:P)
Hands-on access—USB, keyboard, opening the case—not something you do purely over the wire.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 0.4 5.9 dc3f6da9-85b5-4a73-84a2-2ec90b40fca5

Weakness enumeration for CVE-2024-4760

Affected software / configurations for CVE-2024-4760

Vendor Product Version Raw CPE
No affected products in dataset.

References for CVE-2024-4760

cvelogic Threat Intelligence