What is the CVSS score of CVE-2025-2688?

CVE-2025-2688 has a CVSS 4.0 base score of 5.3 (Medium). CVSS vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N. EPSS exploitation probability: 0.1%.

Is there a public PoC exploit available for CVE-2025-2688?

Yes, a public proof-of-concept exploit is available for CVE-2025-2688. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2025-2688?

Within 30 days: Identify affected systems running TOTOLINK A3000RU and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

A3000Ru Firmware CVE-2025-2688

MEDIUM

Incorrect Privilege Assignment (CWE-266)

2025-03-24 cna@vuldb.com

Information Disclosure A3000Ru Firmware TOTOLINK

5.3

CVSS 4.0 · NVD

View

Vulnerability Assessment

Weakness	CWE CWE-266 OWASP Top 10:2025 A06:2025 - Insecure Design ASVS 5.0 V8 - Authorization Privilege assignment review
Impact	CVSS score of 5.3 (MEDIUM). Attack characteristics: adjacent network attack vector, low complexity, no privileges required, no user interaction not required. Public proof-of-concept exploit code is available. EPSS exploitation probability: 0.06%.
Exploit ScenarioDerived	Successful exploitation could compromise the medium-severity affected system.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).

No patch listed yet 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 28, 2026

A vulnerability classified as problematic was found in TOTOLINK A3000RU up to 5.9c.5185. Rated medium severity (CVSS 5.3), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

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

This vulnerability is classified under CWE-266. A vulnerability classified as problematic was found in TOTOLINK A3000RU up to 5.9c.5185. Affected by this vulnerability is an unknown functionality of the file /cgi-bin/ExportSyslog.sh of the component Syslog Configuration File Handler. The manipulation leads to improper access controls. The attack needs to be done within the local network. The exploit has been disclosed to the public and may be used. Affected products include: Totolink A3000Ru Firmware. Version information: up to 5.9.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 5.3 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Adjacent

Attack Complexity

Low

Attack Requirements

None

Privileges Required

None

User Interaction

None

Vulnerable system: Confidentiality

Low

Vulnerable system: Integrity

None

Vulnerable system: Availability

None

Subsequent system: Confidentiality

None

Subsequent system: Integrity

None

Subsequent system: Availability

None

Lifecycle Timeline

PoC Detected

Jul 02, 2025 - 18:03 vuln.today

Public exploit code

CVE Published

Mar 24, 2025 - 07:15 nvd

MEDIUM 5.3

DescriptionCVE.org

A vulnerability classified as problematic was found in TOTOLINK A3000RU up to 5.9c.5185. Affected by this vulnerability is an unknown functionality of the file /cgi-bin/ExportSyslog.sh of the component Syslog Configuration File Handler. The manipulation leads to improper access controls. The attack needs to be done within the local network. The exploit has been disclosed to the public and may be used.

Executive ViewAI

Why It Matters

Organizations using TOTOLINK A3000RU should be aware of moderate risk from CVE-2025-2688 rated CVSS 5.3. Exploitation could compromise the security of affected deployments. Proof-of-concept code is publicly available. Organizations should apply vendor updates when available and monitor for exploitation.

Business Impact: Low

Compensating Controls

Apply vendor patch. If patching is delayed: restrict network access and enable monitoring.

Threat Intelligence Overview

EPSS Score

0.1%

Top 83% exploitable

Exploit

POC

Public exploit code exists

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 MEDIUM

CISA KEV No

Public POC Yes

EPSS 0.1%

Patch available No

Active threat No

Deciding rule

MEDIUM severity (CVSS 4.0-6.9)

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

SSVC Decision· derived

Defer

Exploitation· derived

Poc

System Exposure· derived

Controlled

Automatable· derived

Human Impact

Low

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +26

PoC: +20

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

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