What is CVE-2023-22436?

CVE-2023-22436 is a high-severity vulnerability in Openatom Openharmony, classified under Integer Overflow or Wraparound. CVSS score: 7.8/10. Published 2023-03-10.

How severe is CVE-2023-22436?

High severity. CVSS v3 base score is 7.8 out of 10.

Use After Free in Openatom Openharmony

CVE-2023-22436

The kernel subsystem function check_permission_for_set_tokenid within OpenHarmony-v3.1.5 and prior versions has an UAF vulnerability which local attackers can exploit this vulnerability to escalate the privilege to root.

Vulnerability class: Integer Overflow

Published 2023-03-10 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (6.8th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 7th percentile — 6.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Openatom Openharmony
Openharmony — versions 3.1

Weakness classification (CWE)

References

gitee.com/openharmony/security/blob/master/en/security-disclosure/2023/2023-02… (Third Party Advisory)

Frequently asked questions

What is CVE-2023-22436?: CVE-2023-22436 is a high-severity vulnerability in Openatom Openharmony, classified under Integer Overflow or Wraparound. CVSS score: 7.8/10. Published 2023-03-10.
How severe is CVE-2023-22436?: High severity. CVSS v3 base score is 7.8 out of 10.