What is CVE-2025-11778?

CVE-2025-11778 is a critical-severity vulnerability in Circutor Sge-Plc1000, classified under Heap-based Buffer Overflow. CVSS score: 9.8/10. Published 2025-12-02.

How severe is CVE-2025-11778?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Circutor Sge-Plc1000

CVE-2025-11778

Stack-based buffer overflow in Circutor SGE-PLC1000/SGE-PLC50 v0.9.2. This vulnerability allows an attacker to remotely exploit memory corruption through the 'read_packet()' function of the TACACSPLUS implementation.

Vulnerability class: Buffer Overflow

EPSS: 0.003 (23.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Circutor Sge-plc1000
Circutor Sge-plc1000_firmware — versions 0.9.2
Circutor Sge-plc50
Circutor Sge-plc50_firmware — versions 0.9.2
Sge-plc1000 Sge-plc50 Circutor — versions 9.0.2

Weakness classification (CWE)

CWE-122 — Heap-based Buffer Overflow

References

cve-coordination@incibe.es (Third Party Advisory)

Frequently asked questions

What is CVE-2025-11778?: CVE-2025-11778 is a critical-severity vulnerability in Circutor Sge-Plc1000, classified under Heap-based Buffer Overflow. CVSS score: 9.8/10. Published 2025-12-02.
How severe is CVE-2025-11778?: Critical severity. CVSS v3 base score is 9.8 out of 10.