CVE-2023-26496
CWE-787Published: March 23, 2023· Updated: Jun 17, 2026
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.
Risk Analysis
Samsung Exynos modem chipsets are vulnerable to memory corruption due to improper parameter length checking in the SDP module. This critical flaw could be exploited remotely to compromise the modem's operation.
No public exploit is known, and it is not in the CISA KEV. It is remotely exploitable with low attack complexity.
Apply the latest security updates provided by the device manufacturer for the affected Exynos modem firmware.
Technical Analysis
CVE-2023-26496 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.
From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (6)
Quick Facts
Related CVEs (CWE-787)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-26496 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts