01 Record
CVE-2026-40003
USB-based arbitrary memory write vulnerability in ZTE ZX297520V3 soc BootROM
MediumPUBLISHEDCNA: zte
CNA base score5.1 CVSS v3.xCVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:L
02 Description
USB-based arbitrary memory write vulnerability in ZTE ZX297520V3 soc BootROM
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 ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.29% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 22.0% of scored records. A rank, not a probability.
- NVD base score
- 6.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVD analysis status
- Analyzed. NVD last modified this record on 2026-10-26.
- 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
- 2026-05-07 01:15Z5 MO AGO
- Last updated
- 2026-05-19 17:18Z5 MO AGO
- Reserved
- 2026-04-08
- Assigning CNA
- zte
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 5.1)
- CNA CVSS vector
- CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:L
- Weaknesses
- CWE-787Out-of-bounds WriteBase
- Data version
- 5.2
- Document digest
- 617723e3c69d0c919949074e5a4aa2bf02372218cc68b0c502d054418ca2f8e1
05 Affected products
VendorProductVersionsPlatforms