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Vision-Language (VL) pre-trained models have shown their superiority on many multimodal tasks. However, the adversarial robustness of such models has not been fully explored. Existing approaches mainly focus on exploring the adversarial…

Cryptography and Security · Computer Science 2024-02-07 Ziyi Yin , Muchao Ye , Tianrong Zhang , Tianyu Du , Jinguo Zhu , Han Liu , Jinghui Chen , Ting Wang , Fenglong Ma

Existing adversarial attacks on vision-language models (VLMs) can steer model outputs toward attacker-specified target responses, but their effectiveness often degrades when the same perturbed input is paired with different textual queries.…

Computer Vision and Pattern Recognition · Computer Science 2026-05-19 Zhiqiang Wang , Dongrui Liu , Yan Li , Zonghao Ying , Wei Xue , Wenhan Luo , Yike Guo

Although multimodal large language models (MLLMs) are increasingly deployed in real-world applications, their instruction-following behavior leaves them vulnerable to prompt injection attacks. Existing prompt injection methods predominantly…

Computer Vision and Pattern Recognition · Computer Science 2026-04-01 Meiwen Ding , Song Xia , Chenqi Kong , Xudong Jiang

Large Language Models (LLMs) are being enhanced with the ability to use tools and to process multiple modalities. These new capabilities bring new benefits and also new security risks. In this work, we show that an attacker can use visual…

Cryptography and Security · Computer Science 2023-10-06 Xiaohan Fu , Zihan Wang , Shuheng Li , Rajesh K. Gupta , Niloofar Mireshghallah , Taylor Berg-Kirkpatrick , Earlence Fernandes

The integration of visual and textual data in Vision-Language Pre-training (VLP) models is crucial for enhancing vision-language understanding. However, the adversarial robustness of these models, especially in the alignment of image-text…

Multimedia · Computer Science 2025-06-03 Youze Wang , Wenbo Hu , Yinpeng Dong , Hanwang Zhang , Hang Su , Richang Hong

Vision-language models (VLMs) are increasingly used in autonomous driving because they combine visual perception with language-based reasoning, supporting more interpretable decision-making, yet their robustness to physical adversarial…

Computer Vision and Pattern Recognition · Computer Science 2026-05-01 David Fernandez , Pedram MohajerAnsari , Amir Salarpour , Mert D. Pese

Pre-trained vision-language (VL) models are highly vulnerable to adversarial attacks. However, existing defense methods primarily focus on image classification, overlooking two key aspects of VL tasks: multimodal attacks, where both image…

Computer Vision and Pattern Recognition · Computer Science 2026-01-06 Futa Waseda , Antonio Tejero-de-Pablos , Isao Echizen

Video Multimodal Large Language Models (V-MLLMs) have shown impressive capabilities in temporal reasoning and cross-modal understanding, yet their vulnerability to adversarial attacks remains underexplored due to unique challenges: complex…

Computer Vision and Pattern Recognition · Computer Science 2025-07-02 Jiaming Zhang , Rui Hu , Qing Guo , Wei Yang Bryan Lim

Video-based multimodal large language models (V-MLLMs) have shown vulnerability to adversarial examples in video-text multimodal tasks. However, the transferability of adversarial videos to unseen models - a common and practical real-world…

Computer Vision and Pattern Recognition · Computer Science 2026-01-12 Linhao Huang , Xue Jiang , Zhiqiang Wang , Wentao Mo , Xi Xiao , Yong-Jie Yin , Bo Han , Feng Zheng

In typical multimodal tasks, such as Visual Question Answering (VQA), adversarial attacks targeting a specific image and question can lead large vision-language models (LVLMs) to provide incorrect answers. However, it is common for a single…

Computer Vision and Pattern Recognition · Computer Science 2025-04-16 Yudong Zhang , Ruobing Xie , Jiansheng Chen , Xingwu Sun , Zhanhui Kang , Yu Wang

The deployment of multimodal large language models (MLLMs) has brought forth a unique vulnerability: susceptibility to malicious attacks through visual inputs. This paper investigates the novel challenge of defending MLLMs against such…

Cryptography and Security · Computer Science 2024-06-18 Renjie Pi , Tianyang Han , Jianshu Zhang , Yueqi Xie , Rui Pan , Qing Lian , Hanze Dong , Jipeng Zhang , Tong Zhang

Vision-Language Models (VLMs) have gained considerable prominence in recent years due to their remarkable capability to effectively integrate and process both textual and visual information. This integration has significantly enhanced…

Computer Vision and Pattern Recognition · Computer Science 2025-02-12 Aobotao Dai , Xinyu Ma , Lei Chen , Songze Li , Lin Wang

Textual adversarial attacking has received wide and increasing attention in recent years. Various attack models have been proposed, which are enormously distinct and implemented with different programming frameworks and settings. These…

Computation and Language · Computer Science 2021-09-27 Guoyang Zeng , Fanchao Qi , Qianrui Zhou , Tingji Zhang , Zixian Ma , Bairu Hou , Yuan Zang , Zhiyuan Liu , Maosong Sun

Segment Anything Model (SAM) has attracted significant attention recently, due to its impressive performance on various downstream tasks in a zero-short manner. Computer vision (CV) area might follow the natural language processing (NLP)…

Computer Vision and Pattern Recognition · Computer Science 2023-05-09 Chenshuang Zhang , Chaoning Zhang , Taegoo Kang , Donghun Kim , Sung-Ho Bae , In So Kweon

Natural language processing models are vulnerable to adversarial examples. Previous textual adversarial attacks adopt gradients or confidence scores to calculate word importance ranking and generate adversarial examples. However, this…

Computation and Language · Computer Science 2024-01-11 Hai Zhu , Zhaoqing Yang , Weiwei Shang , Yuren Wu

Vision-Language Models (VLMs) such as CLIP have demonstrated remarkable capabilities in understanding relationships between visual and textual data through joint embedding spaces. Despite their effectiveness, these models remain vulnerable…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Jiaming Zhang , Xin Wang , Xingjun Ma , Lingyu Qiu , Yu-Gang Jiang , Jitao Sang

Vision-Large-Language-Models (Vision-LLMs) are increasingly being integrated into autonomous driving (AD) systems due to their advanced visual-language reasoning capabilities, targeting the perception, prediction, planning, and control…

Computer Vision and Pattern Recognition · Computer Science 2024-05-24 Nhat Chung , Sensen Gao , Tuan-Anh Vu , Jie Zhang , Aishan Liu , Yun Lin , Jin Song Dong , Qing Guo

Vision-Language Models (VLMs) have shown remarkable performance, yet their security remains insufficiently understood. Existing adversarial studies focus almost exclusively on the digital setting, leaving physical-world threats largely…

Computer Vision and Pattern Recognition · Computer Science 2026-04-15 Yingying Zhao , Chengyin Hu , Qike Zhang , Xin Li , Xin Wang , Yiwei Wei , Jiujiang Guo , Jiahuan Long , Tingsong Jiang , Wen Yao

In the context of medical artificial intelligence, this study explores the vulnerabilities of the Pathology Language-Image Pretraining (PLIP) model, a Vision Language Foundation model, under targeted attacks. Leveraging the Kather Colon…

Image and Video Processing · Electrical Eng. & Systems 2024-05-09 Poojitha Thota , Jai Prakash Veerla , Partha Sai Guttikonda , Mohammad S. Nasr , Shirin Nilizadeh , Jacob M. Luber

Large language models (LLMs) are increasingly deployed as educational agents for automatic short answer grading (ASAG) in real-world educational environments, significantly boosting assessment efficiency and scalability. However, when these…

Cryptography and Security · Computer Science 2026-05-25 Xueyi Li , Zhuoneng Zhou , Zitao Liu , Yongdong Wu