What is CVE-2022-36536?

CVE-2022-36536 is a critical-severity vulnerability in Linux Kernel, classified under Use of Insufficiently Random Values. CVSS score: 9.8/10. Published 2022-09-16.

How severe is CVE-2022-36536?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2022-36536 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Linux Kernel

CVE-2022-36536

An issue in the component post_applogin.php of Super Flexible Software GmbH & Co. KG Syncovery 9 for Linux v9.47x and below allows attackers to escalate privileges via creating crafted session tokens.

Published 2022-09-16 · last modified 2026-07-09.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.047 (91.6th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 92nd percentile — 91.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.041 · newest: 0.047 · change: +0.007

Affected products

Weakness classification (CWE)

CWE-330 — Use of Insufficiently Random Values

Public proof-of-concept exploits

rapid7/metasploit-framework

References

af854a3a-2127-422b-91ae-364da2661108 (Not Applicable)
af854a3a-2127-422b-91ae-364da2661108 (Broken Link)
www.mgm-sp.com/en/multiple-vulnerabilities-in-syncovery-for-linux/ (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2022-36536?: CVE-2022-36536 is a critical-severity vulnerability in Linux Kernel, classified under Use of Insufficiently Random Values. CVSS score: 9.8/10. Published 2022-09-16.
How severe is CVE-2022-36536?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2022-36536 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.