CVE-2025-26782 Denial of service in n/a

High 7.5 Published Updated

Attackers can cause a denial of service in Samsung Exynos modems by exploiting incorrect handling of RLC AM PDUs.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2025-26782?

CVE-2025-26782 is a high-severity denial of service vulnerability in Samsung Exynos 1080 Firmware, published on 20 Oct 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue was discovered in L2 in Samsung Mobile Processor, Wearable Processor, and Modem Exynos 980, 990, 850, 1080, 2100, 1280, 2200, 1330, 1380, 1480, 9110, W920, W930, Modem 5123, and Modem 5300. Incorrect handling of RLC AM PDUs leads to a Denial of Service.

Weakness: CWE-400

Which versions are affected by CVE-2025-26782?

It affects 15 products.

Products include Samsung Exynos 1080 Firmware, Samsung Exynos 1280 Firmware, Samsung Exynos 1330 Firmware, Samsung Exynos 1380 Firmware, Samsung Exynos 1480 Firmware, Samsung Exynos 2100 Firmware and 9 more.

How do I fix CVE-2025-26782?

Apply the vendor's patch.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2025-26782 being exploited?

There is no known exploitation of CVE-2025-26782 in the wild and no public exploit code.

All Samsung Exynos 1080 Firmware vulnerabilities

Sources

Also known as A-456151446, GHSA-5hpc-fj64-wxhq, PUB-A-456151446.

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