CVE-2023-49927 Security feature bypass in n/a

Medium 5.3 Published 5 Jun 2024 Updated 2 Aug 2024

Attackers can bypass encryption in Exynos baseband software by manipulating RRC format types, exposing sensitive data.

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

What is CVE-2023-49927?

CVE-2023-49927 is a medium-severity vulnerability in Samsung Exynos 1080 Firmware, published on 5 Jun 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue was discovered in Samsung Mobile Processor, Wearable Processor, and Modem Exynos 980, Exynos 990, Exynos 850, Exynos 1080, Exynos 2100, Exynos 2200, Exynos 1280, Exynos 1380, Exynos 1330, Exynos 9110, Exynos W920, Exynos Modem 5123, Exynos Modem 5300. The baseband software does not properly check format types specified by the RRC. This can lead to a lack of encryption.

Weakness: CWE-311, CWE-331

Which versions are affected by CVE-2023-49927?

It affects 13 products.

Products include Samsung Exynos 1080 Firmware, Samsung Exynos 1280 Firmware, Samsung Exynos 1330 Firmware, Samsung Exynos 1380 Firmware, Samsung Exynos 2100 Firmware, Samsung Exynos 2200 Firmware and 7 more.

How do I fix CVE-2023-49927?

Apply the vendor's patch.

Is CVE-2023-49927 being exploited?

There is no known exploitation of CVE-2023-49927 in the wild and no public exploit code.

All Samsung Exynos 1080 Firmware vulnerabilities

Sources

Also known as A-314778564, GHSA-h327-v36r-6rgj, PUB-A-314778564.