01 Record
CVE-2026-14296
nRF54H20: MCUBoot can be tricked to executing unauthenticated code
HighPUBLISHEDCNA: YesWeHack
CNA base score7.5 CVSS v3.xCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
02 Description
nRF54H20: MCUBoot can be tricked to executing unauthenticated code
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
- EPSS probability
- 0.16% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 5.9% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVD analysis status
- Awaiting Analysis. NVD last modified this record on 2026-09-09.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-09-07 07:58Z1 MO AGO
- Last updated
- 2026-09-08 15:00Z1 MO AGO
- Reserved
- 2026-07-01
- Assigning CNA
- YesWeHack
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.5)
- CNA CVSS vector
- CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-347Improper Verification of Cryptographic SignatureBase
- Data version
- 5.2
- Document digest
- 40e23b32ac7030074a707f8e4a1b6a0fb450c528644a3449503689a3e50f5b10
05 Affected products
VendorProductVersionsPlatforms
06 References
- docs.nordicsemi.comhttps://docs.nordicsemi.com/r/bundle/struct_sa/page/struct/sa.html