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Exploits for CVE-2026-43499 Affect Samsung Devices with Linux Kernel

Exploits for CVE-2026-43499 Affect Samsung Devices with Linux Kernel

First seen 1 Oct 2026, 00:59 UTC • •
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ThreatCluster AI
ThreatCluster •October 2, 2026 at 00:06 UTC
  • •CVE-2026-43499 affects Samsung devices with Linux kernel 6.6.127.
  • •Multiple exploits have been published, but full device validation is pending.
  • •Exploits should only be run on authorized devices due to their specific nature.

Multiple exploits targeting a use-after-free vulnerability (CVE-2026-43499) in the Linux kernel have been published, specifically affecting Samsung devices running the kernel version 6.6.127. The exploits leverage device-specific payloads and require precise firmware matching for execution. The vulnerabilities were disclosed on May 21, 2026, with the first public proof-of-concept (PoC) released on July 30, 2026. The affected KernelSU versions include v3.3.0 and v3.4.0, with reports indicating that some configurations have not yet been validated on devices. Users are advised to only run these exploits on devices they own or are authorized to test. The current status of the exploits suggests that while they have been compiled and tested in controlled environments, full validation on actual devices is still pending. Security professionals should remain vigilant regarding potential exploitation in the wild.

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Timeline

2026-05-21
CVE-2026-43499 published
A use-after-free vulnerability in the Linux kernel was disclosed, rated CVSS 7.8 HIGH.
Sploitus
2026-07-30
First public PoC released
The first proof-of-concept for CVE-2026-43499 was made available, demonstrating the exploit's capabilities.
Sploitus
2026-09-30
Multiple exploits published
Several exploits targeting CVE-2026-43499 were published, including different KernelSU versions.
Sploitus

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Common questions

Which devices are affected by CVE-2026-43499?
Samsung devices running Linux kernel version 6.6.127 are affected, particularly those with specific firmware configurations.
Is there active exploitation of these vulnerabilities?
Currently, there is no confirmed exploitation in the wild, but proof-of-concept code is publicly available.
What should I do if I have an affected device?
Ensure you are using the correct firmware and monitor for updates or patches from Samsung regarding CVE-2026-43499.