Detections
Analytics

CVE-2025-62840

high

Description

A generation of error message containing sensitive information vulnerability has been reported to affect HBS 3 Hybrid Backup Sync. If an attacker gains local network access, they can then exploit the vulnerability to read application data. We have already fixed the vulnerability in the following version: HBS 3 Hybrid Backup Sync 26.2.0.938 and later

References

https://www.securityweek.com/qnap-patches-four-vulnerabilities-exploited-at-pwn2own/

https://securityaffairs.com/189871/security/qnap-fixed-four-vulnerabilities-demonstrated-at-pwn2own-ireland-2025.html

https://www.securityweek.com/qnap-patches-vulnerabilities-exploited-at-pwn2own-ireland/

https://securityaffairs.com/184396/hacking/qnap-fixed-multiple-zero-days-in-its-software-demonstrated-at-pwn2own-2025.html

https://www.bleepingcomputer.com/news/security/qnap-fixes-seven-nas-zero-day-vulnerabilities-exploited-at-pwn2own/

https://www.qnap.com/en/security-advisory/qsa-25-46

Details

Source: Mitre, NVD

Published: 2026-01-02

Updated: 2026-02-05

Risk Information

CVSS v2

Base Score: 1.7

Vector: CVSS2#AV:L/AC:L/Au:S/C:P/I:N/A:N

Severity: Low

CVSS v3

Base Score: 3.3

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

Severity: Low

CVSS v4

Base Score: 7

Vector: CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Severity: High

EPSS

EPSS: 0.00018