5Gone: Uplink Overshadowing Attacks in 5G-SA
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arXiv
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| Auteurs principaux: | , , , , |
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| Format: | Preprint |
| Publié: |
2026
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| _version_ | 1866911439423275008 |
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| author | Erni, Simon Kotuliak, Martin Roeschlin, Marc Baker, Richard Capkun, Srdjan |
| author_facet | Erni, Simon Kotuliak, Martin Roeschlin, Marc Baker, Richard Capkun, Srdjan |
| contents | 5G presents numerous advantages compared to previous generations: improved throughput, lower latency, and improved privacy protection for subscribers. Attacks against 5G standalone (SA) commonly use fake base stations (FBS), which need to operate at a very high output power level to lure victim phones to connect to them and are thus highly detectable. In this paper, we introduce 5Gone, a powerful software-defined radio (SDR)-based uplink overshadowing attack method against 5G-SA. 5Gone exploits deficiencies in the 3GPP standard to perform surgical, covert denial-of-service, privacy, and downgrade attacks. Uplink overshadowing means that an attacker is transmitting at exactly the same time and frequency as the victim UE, but with a slightly higher output power. 5Gone runs on a COTS x86 computer without any need for dedicated hardware acceleration and can overshadow commercial 100 MHz cells with an E2E latency of less than 500$μ$s, which up to now has not been possible with any software-based UE implementation. We demonstrate that 5Gone is highly scalable, even when many UEs are connecting in parallel, and finally evaluate the attacks end-to-end against 7 phone models and three different chipset vendors both in our lab and in the real-world on public gNodeBs. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2602_10272 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | 5Gone: Uplink Overshadowing Attacks in 5G-SA Erni, Simon Kotuliak, Martin Roeschlin, Marc Baker, Richard Capkun, Srdjan Cryptography and Security 5G presents numerous advantages compared to previous generations: improved throughput, lower latency, and improved privacy protection for subscribers. Attacks against 5G standalone (SA) commonly use fake base stations (FBS), which need to operate at a very high output power level to lure victim phones to connect to them and are thus highly detectable. In this paper, we introduce 5Gone, a powerful software-defined radio (SDR)-based uplink overshadowing attack method against 5G-SA. 5Gone exploits deficiencies in the 3GPP standard to perform surgical, covert denial-of-service, privacy, and downgrade attacks. Uplink overshadowing means that an attacker is transmitting at exactly the same time and frequency as the victim UE, but with a slightly higher output power. 5Gone runs on a COTS x86 computer without any need for dedicated hardware acceleration and can overshadow commercial 100 MHz cells with an E2E latency of less than 500$μ$s, which up to now has not been possible with any software-based UE implementation. We demonstrate that 5Gone is highly scalable, even when many UEs are connecting in parallel, and finally evaluate the attacks end-to-end against 7 phone models and three different chipset vendors both in our lab and in the real-world on public gNodeBs. |
| title | 5Gone: Uplink Overshadowing Attacks in 5G-SA |
| topic | Cryptography and Security |
| url | https://arxiv.org/abs/2602.10272 |