CVE-2025-62850: qnap systems inc. qts NULL Pointer Dereference
Vulnerability summary
CVE-2025-62850 is a high (CVSS 7.2) NULL Pointer Dereference vulnerability in qnap systems inc. qts. EPSS estimates a 0.44% chance of exploitation in the next 30 days, higher than 36.7% of scored vulnerabilities.
Timeline
- 10-06-2026PublishedVulnerability first disclosed.
- 15-10-2026Last modifiedVulnerability information updated.
Description
A NULL pointer dereference vulnerability has been reported to affect QTS, QVP, QuTS cloud and QuTS hero. If a remote attacker gains an administrator account, they can then exploit the vulnerability to launch a denial-of-service (DoS) attack. We have already fixed the vulnerability in the following version: QTS 5.2.9.3410 build 20260214 and later QVP 2.7.4 and later QuTS cloud c5.2.9.3468 build 20260413 and later QuTS hero h5.2.9.3410 build 20260214 and later QuTS hero h5.3.4.3500 build 20260520 and later QuTS hero h6.0.0.3459 build 20260409 and later
CVSS metrics
3 scores · 2 sources · 2 versions- NVDNIST5.1MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/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 trend
Probability
0.44%
Chance of exploitation in the next 30 days
Percentile
37%
Versus all other CVEs
30-day change
+0.11 pp
From 0.33% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Qnap systems inc.4 products
- qts≥ 5.2.x, < 5.2.9.3410 build 20260214
- quts cloud≥ c5.2.x, < c5.2.9.3468 build 20260413
- quts hero≥ h5.2.x, < h5.2.9.3410 build 20260214 | ≥ h5.3.x, < h5.3.4.3500 build 20260520 | ≥ h6.0.x, < h6.0.0.3459 build 20260409
- qvp≥ 2.7.x, < 2.7.4
Qnap1 product
- quts_hero≥ h5.2.0.2737, < h5.2.9.3410 | ≥ h5.3.0.3115, < h5.3.4.3500 | ≥ h6.0.0.3324, < h6.0.0.3459
2 vendors · 5 products
References
7 links- www.qnap.com/en/security-advisory/qsa-26-38Broken Link