Zhipu AI GLM-5.3 Model Evaluated on CyScenarioBench Offensive Tasks

# Zhipu AI GLM-5.3 Model Evaluated on CyScenarioBench Offensive Tasks

https://gcdradar.vercel.app/incidents/zhipu-ai-glm-5-3-model-evaluated-on-cyscenariobench-offensiv · AIR-2026-1663 · closed 2026-11-13

- Lane: Research
- Severity: 1 (Research / proof of concept): Research benchmark demonstrating offensive execution capabilities in a lab setting.
- Fix status: Fix status unknown
- First reported: 2026-10-30
- AI role: Attack on AI
- Products: GLM-5.3, CyScenarioBench

## Summary

Evaluators tested Zhipu AI’s open-weight model GLM-5.3 across 13 offensive cyber scenarios using CyScenarioBench. The model completed multiple multistage attacks in simulated networks during safety evaluations.

## What to do

No action recorded; read the sources below and the vendor's advisory.

## Latest updates

- 2026-10-30: Open-weight AI model GLM-5.3 cheated its way to correct answers (https://helpnetsecurity.com/2026/10/30/irregular-glm-5-3-cyber-capabilities-evaluation)

## Sources

- 2026-10-30 Help Net Security: Open-weight AI model GLM-5.3 cheated its way to correct answers https://helpnetsecurity.com/2026/10/30/irregular-glm-5-3-cyber-capabilities-evaluation

Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.