Is CVE-2025-11783 actively exploited?

No active exploitation of CVE-2025-11783 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2025-11783 be exploited remotely?

Yes. CVE-2025-11783 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2025-11783?

CVE-2025-11783 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2025-11783

CWE-121Published: December 2, 2025· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

Stack-based buffer overflow vulnerability in Circutor SGE-PLC1000/SGE-PLC50 v9.0.2. The vulnerability is found in the 'AddEvent()' function when copying the user-controlled username input to a fixed-size buffer (48 bytes) without boundary checking. This can lead to memory corruption, resulting in possible remote code execution.

NVD Source

Risk Analysis

This critical stack-based buffer overflow vulnerability in Circutor SGE-PLC1000/SGE-PLC50 v9.0.2 allows an attacker to cause memory corruption by providing an overly long username. With a CVSS score of 9.8, this flaw is highly severe and could lead to remote code execution and complete system compromise. The absence of an EPSS score means there is no current data on its exploitation likelihood, but its critical severity warrants immediate attention.

No public exploit is currently known for this vulnerability. Its network-exploitable nature and low attack complexity suggest that a working exploit could be developed and used remotely without user interaction.

Recommended Action

Users of Circutor SGE-PLC1000/SGE-PLC50 v9.0.2 should update to a patched version as soon as one is available. Implementing robust input validation and boundary checking for user-supplied inputs is crucial to prevent buffer overflows.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2025-11783 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.