What is CVE-2023-39373?

CVE-2023-39373 is a high-severity vulnerability in Hyundai 2017, classified under Authentication Bypass by Capture-replay. CVSS score: 7.4/10. Published 2023-09-03.

How severe is CVE-2023-39373?

High severity. CVSS v3 base score is 7.4 out of 10.

Vulnerability in Hyundai 2017

CVE-2023-39373

A Hyundai model (2017) - CWE-294: Authentication Bypass by Capture-replay.

Published 2023-09-03 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.003 (25.9th percentile), scored 2026-10-19.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 26th percentile — 25.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Hyundai 2017
Hyundai 2017 Firmware
Hyundai Model (2017) — versions model (2017)

Weakness classification (CWE)

CWE-294 — Authentication Bypass by Capture-replay

References

www.gov.il/en/Departments/faq/cve_advisories (Third Party Advisory)

Frequently asked questions

What is CVE-2023-39373?: CVE-2023-39373 is a high-severity vulnerability in Hyundai 2017, classified under Authentication Bypass by Capture-replay. CVSS score: 7.4/10. Published 2023-09-03.
How severe is CVE-2023-39373?: High severity. CVSS v3 base score is 7.4 out of 10.