Hard-coded password for UDS services

published 2024-01-12 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-32517

cvss: 4.0; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 24%
public exploits: 0; none known

The secret value used for access to critical UDS services of the MIB3 infotainment is hardcoded in the firmware.

Vulnerability discovered on Škoda Superb III (3V3) - 2.0 TDI manufactured in 2022.

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 2 y ago (2024-01-12)

Exploit prediction

0.31% chance of exploitation in the next 30 days, higher than 24% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	4.0	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
NVD	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

JOYNEXT MIB3 Infotainment Unit

Classification

Weakness

CWE-798 Use of Hard-coded Credentials

References

asrg.io /security-advisories/cve-2023-28897
third-party-advisory

Sources

CVE List CVE-2023-28897
NVD CVE-2023-28897

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary