# CVE-2025-59440: An issue was discovered in USIM in Samsung Mobile Processor, Wearable Processor, and Modem Exynos 980, 990, 850, 1080…

Source: https://junglewise.ai/threats/cve-2025-59440-an-issue-was-discovered-in-usim-in-samsung-mobile-processor  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-04-06  
License: CC BY 4.0 with a link back

CVE-2025-59440 · Severity: high · CVSS 7.5 · Published 2026-04-06

An issue was discovered in USIM in Samsung Mobile Processor, Wearable Processor, and Modem Exynos 980, 990, 850, 1080, 2100, 1280, 2200, 1330, 1380, 1480, 2400, 1580, 2500, 9110, W920, W930, W1000, Modem 5123, Modem 5300, and Modem 5400. Improper handling of SIM card proactive commands leads to a Denial of Service.

Technologies: [Samsung Exynos 1080](https://junglewise.ai/threats/technologies/exynos-1080), [Samsung Exynos 1080 Firmware](https://junglewise.ai/threats/technologies/exynos-1080-firmware), [Samsung Exynos 1280](https://junglewise.ai/threats/technologies/exynos-1280), [Samsung Exynos 1280 Firmware](https://junglewise.ai/threats/technologies/exynos-1280-firmware), [Samsung Exynos 1330](https://junglewise.ai/threats/technologies/exynos-1330), [Samsung Exynos 1330 Firmware](https://junglewise.ai/threats/technologies/exynos-1330-firmware), [Samsung Exynos 1380](https://junglewise.ai/threats/technologies/exynos-1380), [Samsung Exynos 1380 Firmware](https://junglewise.ai/threats/technologies/exynos-1380-firmware), [Samsung Exynos 1480](https://junglewise.ai/threats/technologies/exynos-1480), [Samsung Exynos 1480 Firmware](https://junglewise.ai/threats/technologies/exynos-1480-firmware), [Samsung Exynos 1580](https://junglewise.ai/threats/technologies/exynos-1580), [Samsung Exynos 1580 Firmware](https://junglewise.ai/threats/technologies/exynos-1580-firmware), [Samsung Exynos 2100](https://junglewise.ai/threats/technologies/exynos-2100), [Samsung Exynos 2100 Firmware](https://junglewise.ai/threats/technologies/exynos-2100-firmware), [Samsung Exynos 2200](https://junglewise.ai/threats/technologies/exynos-2200), [Samsung Exynos 2200 Firmware](https://junglewise.ai/threats/technologies/exynos-2200-firmware), [Samsung Exynos 2400](https://junglewise.ai/threats/technologies/exynos-2400), [Samsung Exynos 2400 Firmware](https://junglewise.ai/threats/technologies/exynos-2400-firmware), [Samsung Exynos 2500](https://junglewise.ai/threats/technologies/exynos-2500), [Samsung Exynos 2500 Firmware](https://junglewise.ai/threats/technologies/exynos-2500-firmware), [Samsung Exynos 850](https://junglewise.ai/threats/technologies/exynos-850), [Samsung Exynos 850 Firmware](https://junglewise.ai/threats/technologies/exynos-850-firmware), [Samsung Exynos 9110](https://junglewise.ai/threats/technologies/exynos-9110), [Samsung Exynos 9110 Firmware](https://junglewise.ai/threats/technologies/exynos-9110-firmware), [Samsung Exynos 980](https://junglewise.ai/threats/technologies/exynos-980), [Samsung Exynos 980 Firmware](https://junglewise.ai/threats/technologies/exynos-980-firmware), [Samsung Exynos 990](https://junglewise.ai/threats/technologies/exynos-990), [Samsung Exynos 990 Firmware](https://junglewise.ai/threats/technologies/exynos-990-firmware), [Samsung Exynos Modem 5123](https://junglewise.ai/threats/technologies/exynos-modem-5123), [Samsung Exynos Modem 5123 Firmware](https://junglewise.ai/threats/technologies/exynos-modem-5123-firmware), [Samsung Exynos Modem 5300](https://junglewise.ai/threats/technologies/exynos-modem-5300), [Samsung Exynos Modem 5300 Firmware](https://junglewise.ai/threats/technologies/exynos-modem-5300-firmware), [Samsung Exynos Modem 5400](https://junglewise.ai/threats/technologies/exynos-modem-5400), [Samsung Exynos Modem 5400 Firmware](https://junglewise.ai/threats/technologies/exynos-modem-5400-firmware), [Samsung Exynos W1000](https://junglewise.ai/threats/technologies/exynos-w1000), [Samsung Exynos W1000 Firmware](https://junglewise.ai/threats/technologies/exynos-w1000-firmware), [Samsung Exynos W920](https://junglewise.ai/threats/technologies/exynos-w920), [Samsung Exynos W920 Firmware](https://junglewise.ai/threats/technologies/exynos-w920-firmware), [Samsung Exynos W930](https://junglewise.ai/threats/technologies/exynos-w930), [Samsung Exynos W930 Firmware](https://junglewise.ai/threats/technologies/exynos-w930-firmware). Vendors: [Samsung](https://junglewise.ai/threats/vendors/samsung).

## Quick answers

**Is CVE-2025-59440 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-59440 being exploited in the wild.

**How severe is CVE-2025-59440?** High severity, with a CVSS score of 7.5, published 6 April 2026.

**Which products and versions are affected?** Samsung Exynos 1080, Samsung Exynos 1080 Firmware, Samsung Exynos 1280, Samsung Exynos 1280 Firmware and 36 more. The advisory does not name versions.

**Is there a fix for CVE-2025-59440?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**Am I affected by CVE-2025-59440?** Check whether you run Samsung Exynos 1080, Samsung Exynos 1080 Firmware, Samsung Exynos 1280 or one of the others listed. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- Samsung Exynos 1080
- Samsung Exynos 1080 Firmware
- Samsung Exynos 1280
- Samsung Exynos 1280 Firmware
- Samsung Exynos 1330
- Samsung Exynos 1330 Firmware
- Samsung Exynos 1380
- Samsung Exynos 1380 Firmware
- Samsung Exynos 1480
- Samsung Exynos 1480 Firmware
- Samsung Exynos 1580
- Samsung Exynos 1580 Firmware
- Samsung Exynos 2100
- Samsung Exynos 2100 Firmware
- Samsung Exynos 2200
- Samsung Exynos 2200 Firmware
- Samsung Exynos 2400
- Samsung Exynos 2400 Firmware
- Samsung Exynos 2500
- Samsung Exynos 2500 Firmware
- Samsung Exynos 850
- Samsung Exynos 850 Firmware
- Samsung Exynos 9110
- Samsung Exynos 9110 Firmware
- Samsung Exynos 980
- Samsung Exynos 980 Firmware
- Samsung Exynos 990
- Samsung Exynos 990 Firmware
- Samsung Exynos Modem 5123
- Samsung Exynos Modem 5123 Firmware
- Samsung Exynos Modem 5300
- Samsung Exynos Modem 5300 Firmware
- Samsung Exynos Modem 5400
- Samsung Exynos Modem 5400 Firmware
- Samsung Exynos W1000
- Samsung Exynos W1000 Firmware
- Samsung Exynos W920
- Samsung Exynos W920 Firmware
- Samsung Exynos W930
- Samsung Exynos W930 Firmware

## Related threats

- [Samsung Exynos denial of service in Shannon SM Task](https://junglewise.ai/threats/cve-2023-37366-samsung-exynos-denial-of-service-in-shannon-sm-task)
- [Samsung Exynos 5G baseband NULL pointer dereference in RRC Reconfiguration](https://junglewise.ai/threats/cve-2026-33970-samsung-exynos-5g-baseband-null-pointer-dereference-in-rrc)
- [Samsung Exynos camera driver TOCTOU race condition](https://junglewise.ai/threats/cve-2026-33968-samsung-exynos-camera-driver-toctou-race-condition)
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