CVE-2024-4760
Voltage glitch during startup of the EEFC NVM controller can bypass the security bit
- Published
- Updated
- Reserved
- Assigned by
- Microchip
Description
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.
Public exploit
A reference of the record is tagged as an exploit or proof of concept: anyone can try it against an unpatched system.
- https://www.0x01team.com/hw_security/bypassing-microchip-atmel-sam-e70-s70-v70-v71-security/ (opens in a new tab)technical-descriptionexploitx_transferred
Timeline
ID reserved
By Microchip
- 6 days later
· 6 days later
Published
- 13 months later
· 13 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| MicrochipCNA (assigner) | 3.1 | Medium6.3 | CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVDNVD · Deferred | 3.1 | Medium6.3 | CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.21% · top 89% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.3.
Weakness
Affected products
- affected 0
- affected 0
- affected 0
- affected 0
- affected 0
- affected 0
- affected 0
- affected 0
- affected 0
- affected 0
- affected 0
- affected 0
What to do
Workaround: Please contact Microchip to obtain the appropriate patch for your devices, which are available as binary code updates.
References (2)
- https://www.0x01team.com/hw_security/bypassing-microchip-atmel-sam-e70-s70-v70-v71-security/ (opens in a new tab)technical-descriptionexploitx_transferred
- https://ww1.microchip.com/downloads/aemDocuments/documents/MCU32/ProductDocuments/SupportingCollateral/Security-Advisory-CVE-2024-4760.pdf (opens in a new tab)vendor-advisory
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2024-4760)Record last updated .