Is CVE-2025-57834 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2025-57834 being exploited in the wild.

How severe is CVE-2025-57834?

High severity, with a CVSS score of 7.5, published 6 April 2026.

Which products and versions are affected?

Samsung Exynos 980; Samsung Exynos 850; Samsung Exynos 990; Samsung Exynos 1080; and 18 more.

Is there a fix for CVE-2025-57834?

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.

How is CVE-2025-57834 attacked?

It is attacked over the network, in device firmware.

Am I affected by CVE-2025-57834?

Check whether anything you run is named in the advisory. 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.

CVE-2025-57834: Samsung Exynos Processors and Modems denial of service via improper input validation

CVE-2025-57834 · Severity: high · CVSS 7.5 · Published 2026-04-06

A vulnerability exists in several Samsung Exynos processors and modems used in smartphones and wearable devices. An attacker could exploit this flaw to cause a denial-of-service, effectively crashing the device or its cellular connectivity. This could disrupt emergency communications, business operations, and general device availability for affected users.

Quick answers

Is CVE-2025-57834 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2025-57834 being exploited in the wild.
How severe is CVE-2025-57834?: High severity, with a CVSS score of 7.5, published 6 April 2026.
Which products and versions are affected?: Samsung Exynos 980; Samsung Exynos 850; Samsung Exynos 990; Samsung Exynos 1080; and 18 more.
Is there a fix for CVE-2025-57834?: 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.
How is CVE-2025-57834 attacked?: It is attacked over the network, in device firmware.
Am I affected by CVE-2025-57834?: Check whether anything you run is named in the advisory. 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.

Technical details

A vulnerability classified as improper input validation (CWE-20) exists in the firmware of multiple Samsung Exynos chipsets and modems. The flaw allows a remote, unauthenticated attacker to send specially crafted input over the network to trigger a denial-of-service (DoS) condition. Affected components include a wide range of mobile and wearable processors (e.g., Exynos 2100, 2400, W1000) and discrete modems (e.g., Modem 5300, 5400). While the specific protocol or message type is not detailed in the primary advisory, the impact is a high-availability disruption. Users should apply firmware updates provided by their device manufacturers.

Affected products

Samsung Exynos 980
Samsung Exynos 850
Samsung Exynos 990
Samsung Exynos 1080
Samsung Exynos 2100
Samsung Exynos 1280
Samsung Exynos 2200
Samsung Exynos 1330
Samsung Exynos 1380
Samsung Exynos 1480
Samsung Exynos 2400
Samsung Exynos 1580
Samsung Exynos 2500
Samsung Exynos 1680
Samsung Exynos 9110
Samsung Exynos W920
Samsung Exynos W930
Samsung Exynos W1000
Samsung Modem 5123
Samsung Modem 5300
Samsung Modem 5400
Samsung Modem 5410

Timeline

2026-04-06: advisory

References

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