CVE-2026-8374

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.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.08% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 0.3% of scored records. A rank, not a probability.

NVD base score

8.5 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:H/SC:L/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:P/AU:N/R:I/V:D/RE:H/U:Red

NVD analysis status

Deferred. NVD last modified this record on 2026-10-15.

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.

Published

2026-10-09 12:09Z19 DAYS AGO

Last updated

2026-10-15 18:02Z13 DAYS AGO

Reserved

2026-05-12

Assigning CNA

cirosec

Record state

PUBLISHED

Severity

High (CVSS 8.5)

CNA CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:H/SC:L/SI:H/SA:H/S:P/AU:N/R:I/V:D/RE:H/U:Red

Weaknesses

• CWE-1204Generation of Weak Initialization Vector (IV)Base
• CWE-1240Use of a Cryptographic Primitive with a Risky ImplementationBase

Data version

5.2

Document digest

1aeb7f63d0c213fa2723af98a59e465c58907f97b50aec8b0e4c69c43c358f60

• neodyme.iohttps://neodyme.io/en/advisories/cve-2026-8374/
• neodyme.iohttps://neodyme.io/en/blog/switchbot/