CVE-2025-52871: qnap systems inc. license center Out-of-bounds Read
CVSS: 6.5v3.1MediumAnalyzed
Published 02-01-2026Last modified 02-01-2026
Vulnerability summary
CVE-2025-52871 is a medium (CVSS 6.5) Out-of-bounds Read vulnerability in qnap systems inc. license center. EPSS estimates a 0.58% chance of exploitation in the next 30 days, higher than 46.5% of scored vulnerabilities.
CVSS score
6.5/10
010
Medium · v3.1 (NVD)EPSS score
0.58%
0%100%
Low · -0.01 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 02-01-2026PublishedVulnerability first disclosed.
- 02-01-2026Last modifiedVulnerability information updated.
Description
An out-of-bounds read vulnerability has been reported to affect License Center. If a remote attacker gains a user account, they can then exploit the vulnerability to obtain secret data. We have already fixed the vulnerability in the following version: License Center 2.0.36 and later
CVSS metrics
3 scores · 2 sources · 2 versionsLow 1.3Preferred score · CVE.org (CNA)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:USourcesAll 2 agree
- NVDNIST1.3LowCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/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
Medium 6.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NSourcesSingle source
EPSS trend
Probability
0.58%
Chance of exploitation in the next 30 days
Percentile
47%
Versus all other CVEs
30-day change
-0.01 pp
From 0.59% on 20-09-2026
20-09-202620-10-2026
EPSS score0.58%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Qnap1 product
- license_center≥ 2.0.17, < 2.0.36
Qnap systems inc.1 product
- license center≥ 2.0.x, < 2.0.36
2 vendors · 2 products
References
1 links- www.qnap.com/en/security-advisory/qsa-25-52Vendor Advisory