CVE-2023-26072
CWE-787Published: March 13, 2023· Updated: Jun 17, 2026
Official Description
An issue was discovered in Samsung Mobile Chipset and Baseband Modem Chipset for Exynos 850, Exynos 980, Exynos 1080, Exynos 1280, Exynos 2200, Exynos Modem 5123, Exynos Modem 5300, and Exynos Auto T5123. A heap-based buffer overflow in the 5G MM message codec can occur due to insufficient parameter validation when decoding the Emergency number list.
Risk Analysis
A heap-based buffer overflow in the Samsung Exynos 5G MM message codec, triggered by improper validation of emergency number lists, poses a critical risk. This flaw could allow remote attackers to compromise the chipset.
No public exploit is known, and the vulnerability is not in the CISA KEV. It is remotely exploitable.
Apply the latest firmware updates provided by Samsung. Restrict device exposure to untrusted networks where possible.
Technical Analysis
CVE-2023-26072 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 (13)
Quick Facts
Related CVEs (CWE-787)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-26072 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts