What is CVE-2022-50689?

CVE-2022-50689 is a medium-severity vulnerability in Cobiansoft Cobian Reflector, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 6.2/10. Published 2025-12-22.

How severe is CVE-2022-50689?

Medium severity. CVSS v3 base score is 6.2 out of 10.

Buffer overflow in Cobiansoft Cobian Reflector

CVE-2022-50689

Cobian Reflector 0.9.93 RC1 contains a denial of service vulnerability that allows attackers to crash the application by overflowing the password input field. Attackers can paste a large 8000-byte buffer into the password field to trigger an application crash during SFTP task configuration.

Vulnerability class: Buffer Overflow

EPSS: 0.002 (8.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Cobiansoft Cobian Reflector — versions 0.9.93
Cobiansoft Reflector — versions 0.9.93

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

disclosure@vulncheck.com (Exploit, Third Party Advisory, exploit)
disclosure@vulncheck.com (Product, product)
disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2022-50689?: CVE-2022-50689 is a medium-severity vulnerability in Cobiansoft Cobian Reflector, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 6.2/10. Published 2025-12-22.
How severe is CVE-2022-50689?: Medium severity. CVSS v3 base score is 6.2 out of 10.