CVE-2020-2506

CVE-2020-2506 is a high-severity (CVSS 7.3) vulnerability in QNAP Systems Helpdesk. CISA added it to the Known Exploited Vulnerabilities catalog on March 25, 2022, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by April 15, 2022. CISA does not currently list it as used in ransomware campaigns.

The vulnerability have been reported to affect earlier versions of QTS. If exploited, this improper access control vulnerability could allow attackers to compromise the security of the software by gaining privileges, or reading sensitive information. This issue affects: QNAP Systems Inc. Helpdesk versions prior to 3.0.3.

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

• https://www.qnap.com/zh-tw/security-advisory/qsa-20-08
• https://www.qnap.com/zh-tw/security-advisory/qsa-20-08
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-2506