CVE-2025-53597: qnap systems inc. license center Stack-based Buffer Overflow
Vulnerability summary
CVE-2025-53597 is a medium (CVSS 6.5) Stack-based Buffer Overflow vulnerability in qnap systems inc. license center. EPSS estimates a 0.60% chance of exploitation in the next 30 days, higher than 47.6% of scored vulnerabilities.
Timeline
- 02-01-2026PublishedVulnerability first disclosed.
- 02-01-2026Last modifiedVulnerability information updated.
Description
A buffer overflow vulnerability has been reported to affect License Center. If a remote attacker gains an administrator account, they can then exploit the vulnerability to modify memory or crash processes. We have already fixed the vulnerability in the following version: License Center 2.0.36 and later
CVSS metrics
3 scores · 2 sources · 2 versions- NVDNIST1.2LowCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/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
EPSS trend
Probability
0.60%
Chance of exploitation in the next 30 days
Percentile
48%
Versus all other CVEs
30-day change
-0.01 pp
From 0.61% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-121Stack-based Buffer OverflowA stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
- CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.
Affected 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