What is the CVSS score of CVE-2025-60685?

CVE-2025-60685 has a CVSS 3.1 base score of 5.1 (Medium). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L. EPSS exploitation probability: 0.0%.

Which versions of A720R Firmware are affected by CVE-2025-60685?

Organizations using the ToToLink A720R Router firmware should be aware of moderate risk from CVE-2025-60685, a stack-based buffer overflow vulnerability rated CVSS 5.1.

Is there a public PoC exploit available for CVE-2025-60685?

Yes, a public proof-of-concept exploit is available for CVE-2025-60685. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2025-60685?

Within 30 days: Identify affected systems running the ToToLink A720R Router firmware and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

A720R Firmware CVE-2025-60685

MEDIUM

Stack-based Buffer Overflow (CWE-121)

2025-11-13 cve@mitre.org

RCE Buffer Overflow Stack Overflow A720R Firmware TOTOLINK

5.1

CVSS 3.1 · Vendor: mitre

Severity by source

Vendor (mitre) PRIMARY

5.1 MEDIUM

AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

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

CVSS VectorVendor: mitre

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

Low

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:22 vuln.today

PoC Detected

Nov 17, 2025 - 21:50 vuln.today

Public exploit code

CVE Published

Nov 13, 2025 - 16:15 nvd

MEDIUM 5.1

DescriptionCVE.org

A stack buffer overflow exists in the ToToLink A720R Router firmware V4.1.5cu.614_B20230630 within the sysconf binary (sub_401EE0 function). The binary reads the /proc/stat file using fgets() into a local buffer and subsequently parses the line using sscanf() into a single-byte variable with the %s format specifier. Maliciously crafted /proc/stat content can overwrite adjacent stack memory, potentially allowing an attacker with filesystem write privileges to execute arbitrary code on the device.

AnalysisAI

A stack buffer overflow exists in the ToToLink A720R Router firmware V4.1.5cu.614_B20230630 within the sysconf binary (sub_401EE0 function). Rated medium severity (CVSS 5.1), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-121. A stack buffer overflow exists in the ToToLink A720R Router firmware V4.1.5cu.614_B20230630 within the sysconf binary (sub_401EE0 function). The binary reads the /proc/stat file using fgets() into a local buffer and subsequently parses the line using sscanf() into a single-byte variable with the %s format specifier. Maliciously crafted /proc/stat content can overwrite adjacent stack memory, potentially allowing an attacker with filesystem write privileges to execute arbitrary code on the device. Affected products include: Totolink A720R Firmware.

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.