Samsung Semiconductor Exynos 1680 Exynos NPU integer overflow

Summaryinfo

A vulnerability identified as very critical has been detected in Samsung Semiconductor Exynos 2100, Exynos 1280, Exynos 2200, Exynos 1380, Exynos 1480, Exynos 2400, Exynos 1580, Exynos 2500, Exynos 2600 and Exynos 1680. Affected by this vulnerability is an unknown functionality of the component Exynos NPU. The manipulation leads to integer overflow. This vulnerability is documented as CVE-2026-68984. The attack needs to be performed locally. There is not any exploit available.

Detailsinfo

A vulnerability was found in Samsung Semiconductor Exynos 2100, Exynos 1280, Exynos 2200, Exynos 1380, Exynos 1480, Exynos 2400, Exynos 1580, Exynos 2500, Exynos 2600 and Exynos 1680 and classified as very critical. This issue affects some unknown functionality of the component Exynos NPU. The manipulation with an unknown input leads to a integer overflow vulnerability. Using CWE to declare the problem leads to CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

In the Samsung Exynos NPU kernel driver, an integer overflow allows an unprivileged application to trigger memory corruption.

The advisory is shared at semiconductor.samsung.com. The identification of this vulnerability is CVE-2026-68984 since 08/03/2026. The exploitation is known to be easy. An attack has to be approached locally. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 11/05/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• Samsung Semiconductor

Name

• Exynos 1280
• Exynos 1380
• Exynos 1480
• Exynos 1580
• Exynos 1680
• Exynos 2100
• Exynos 2200
• Exynos 2400
• Exynos 2500
• Exynos 2600

License

• commercial

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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