What is the CVSS score of CVE-2025-52871?

CVE-2025-52871 has a CVSS 4.0 base score of 1.3 (Low). CVSS vector: 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:U. EPSS exploitation probability: 0.0%.

How to fix or mitigate CVE-2025-52871?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

License Center CVE-2025-52871

LOW

Out-of-bounds Read (CWE-125)

2026-01-02 security@qnapsecurity.com.tw

Buffer Overflow Information Disclosure Qnap License Center

1.3

CVSS 4.0 · Vendor: qnapsecurity

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Vulnerability Assessment

Weakness	CWE CWE-125 OWASP Top 10:2025 A06:2021 - Vulnerable and Outdated Components ASVS 5.0 V15 - Secure Coding and Architecture Bounds checking, read limits MITRE ATT&CK 1 technique across 1 tactic: Collection The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	CVSS 6.5 (MEDIUM). Attack vector: Network. Complexity: Low. Privileges required: Low. User interaction: None. Exploitable via remote/network.
Exploit ScenarioDerived	A remote attacker could exploit this vulnerability to compromise the affected system.

Monitor Track and reassess. Why: LOW severity (CVSS 0.1-3.9).

No patch listed yet 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

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. [CVSS 6.5 MEDIUM]

RemediationAI

Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

Classified as CWE-125 (Out-of-bounds Read). Affects License Center. 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

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (qnapsecurity) PRIMARY 1.3 LOW

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:U

Primary rating from Vendor (qnapsecurity) · only source for this CVE.

CVSS VectorVendor: qnapsecurity

Attack Vector

Network

Attack Complexity

Low

Attack Requirements

None

Privileges Required

Low

User Interaction

None

Vulnerable system: Confidentiality

Low

Vulnerable system: Integrity

None

Vulnerable system: Availability

Low

Subsequent system: Confidentiality

None

Subsequent system: Integrity

None

Subsequent system: Availability

None

Lifecycle Timeline

Severity Changed

Oct 14, 2026 - 13:22 NVD

MEDIUM LOW

CVSS changed

Oct 14, 2026 - 13:22 NVD

6.5 (MEDIUM) 1.3 (LOW)

CVE Published

Jan 02, 2026 - 16:16 nvd

MEDIUM 6.5

DescriptionCVE.org

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

Executive ViewAI

Why It Matters

Organizations using secret data. We have already fixed the vulnerability in the following should be aware of notable risk from CVE-2025-52871, a out-of-bounds read vulnerability rated CVSS 6.5. Exploitation could cause memory corruption or application crashes. Organizations should apply vendor updates when available and monitor for exploitation.

Business Impact: Moderate

Compensating Controls

Apply vendor patch. If patching is delayed: enable ASLR/DEP, apply network segmentation.

Threat Intelligence Overview

EPSS Score

0.0%

Top 94% exploitable

Data Quality

3 sources

Confidence: Low

NVD

CVE.org

EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity LOW

CISA KEV No

Public POC No

EPSS 0.0%

Patch available No

Active threat No

Deciding rule

LOW severity (CVSS 0.1-3.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

Exploitation· derived

None

System Exposure· derived

Open

Automatable· derived

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +6

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Buffer Overflow HIGH

A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.