CVE-2023-26496 Memory corruption in n/a

High 8.6 Published Updated

Attackers can trigger memory corruption in Samsung Exynos modems via malformed SDP packets, potentially leading to code execution or privilege escalation.

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

What is CVE-2023-26496?

CVE-2023-26496 is a high-severity memory corruption vulnerability in Samsung Exynos 1080 Firmware, published on 23 Mar 2023. 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 Baseband Modem Chipset for Exynos Modem 5123, Exynos Modem 5300, Exynos 980, Exynos 1080, and Exynos Auto T5124. Memory corruption can occur due to improper checking of the parameter length while parsing the fmtp attribute in the SDP (Session Description Protocol) module.

Weakness: CWE-787

Which versions are affected by CVE-2023-26496?

It affects 5 products.

Products include Samsung Exynos 1080 Firmware, Samsung Exynos 980 Firmware, Samsung Exynos Auto T5123 Firmware, Samsung Exynos Modem 5123 Firmware, Samsung Exynos Modem 5300 Firmware.

How do I fix CVE-2023-26496?

Apply the vendor's patch.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2023-26496 being exploited?

There is no known exploitation of CVE-2023-26496 in the wild and no public exploit code.

All Samsung Exynos 1080 Firmware vulnerabilities

Sources

Also known as A-274465028, GHSA-pqvr-f3f6-cc4q, PUB-A-274465028.

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