platform_callback_stub in misc subsystem has an authentication bypass vulnerability which allows an "SA relay attack".

published 2023-01-09 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-12141

cvss: 6.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 8%
public exploits: 0; none known

platform_callback_stub in misc subsystem within OpenHarmony-v3.0.5 and prior versions has an authentication bypass vulnerability which allows an "SA relay attack".Local attackers can bypass authentication and attack other SAs with high privilege.

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 19 mo ago (2025-04-09)

Exploit prediction

0.19% chance of exploitation in the next 30 days, higher than 8% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	6.5	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
NVD	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

OpenHarmony OpenHarmony

Classification

Weakness

CWE-287 Improper Authentication
CWE-294 Authentication Bypass by Capture-replay

References

gitee.com /openharmony/security/blob/master/en/security-disclosure/2023/2023-01.md
third-party-advisory

Sources

CVE List CVE-2023-0036
NVD CVE-2023-0036

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Summary