CVE-2020-36946

Name: CVE-2020-36946
Creator: NVD / NIST
Published: 2026-01-27T16:16:11.857+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.7/10EPSS 0.64%

Last modified Jun 17, 2026

CVE-2020-36946 is a high-severity vulnerability rated 8.7/10 on the CVSS scale. SyncBreeze 10.0.28 contains a denial of service vulnerability in the login endpoint that allows remote attackers to crash the service. Attackers can send an oversized payload in the login request to overwhelm the application and potentially disrupt service availability.. EPSS estimates a 0.64% chance of exploitation in the next 30 days.

Description

SyncBreeze 10.0.28 contains a denial of service vulnerability in the login endpoint that allows remote attackers to crash the service. Attackers can send an oversized payload in the login request to overwhelm the application and potentially disrupt service availability.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS 4.0

8.7/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.64%

46.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-770

Affected Software

Vendor	Product	Versions
Flexense	Syncbreeze	10.0.28

References

http://www.syncbreeze.comProduct
https://www.exploit-db.com/exploits/49291Exploit, Third Party Advisory
https://www.vulncheck.com/advisories/syncbreeze-login-denial-of-serviceThird Party Advisory
https://www.exploit-db.com/exploits/49291Exploit, Third Party Advisory

Timeline

Published: Jan 27, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2020-36946?

How severe is CVE-2020-36946?

CVE-2020-36946 has a CVSS score of 8.7/10 (HIGH severity). The EPSS model estimates a 0.64% probability of exploitation in the next 30 days.

How do I fix CVE-2020-36946?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-36946?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST