Samsung Exynos W920 5G MM Message Codec heap-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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7.8$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Samsung Exynos 850, Exynos 980, Exynos 1080, Exynos 1280, Exynos 2200, Exynos Modem 5123, Exynos Modem 5300, Exynos Auto T5123 and Exynos W920. This affects an unknown function of the component 5G MM Message Codec. Performing a manipulation results in heap-based overflow. This vulnerability is cataloged as CVE-2023-26074. It is possible to initiate the attack remotely. Furthermore, there is an exploit available.

Detailsinfo

A vulnerability, which was classified as critical, was found in Samsung Exynos 850, Exynos 980, Exynos 1080, Exynos 1280, Exynos 2200, Exynos Modem 5123, Exynos Modem 5300, Exynos Auto T5123 and Exynos W920. This affects some unknown processing of the component 5G MM Message Codec. The manipulation with an unknown input leads to a heap-based overflow vulnerability. CWE is classifying the issue as CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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, Exynos Auto T5123, and Exynos W920. A heap-based buffer overflow in the 5G MM message codec can occur due to insufficient parameter validation when decoding operator-defined access category definitions.

The weakness was shared 03/13/2023. This vulnerability is uniquely identified as CVE-2023-26074 since 02/19/2023. Technical details are unknown but a public exploit is available.

The exploit is shared for download at packetstormsecurity.com. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-29948). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.9
VulDB Meta Temp Score: 7.8

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CNA Base Score: 7.6
CNA Vector (MITRE): 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/19/2023 🔍
03/13/2023 +22 days 🔍
03/13/2023 +0 days 🔍
11/03/2025 +966 days 🔍

Sourcesinfo

Vendor: samsung.com

Advisory: 171383
Status: Confirmed

CVE: CVE-2023-26074 (🔍)
GCVE (CVE): GCVE-0-2023-26074
GCVE (VulDB): GCVE-100-222879
EUVD: 🔍
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 03/13/2023 15:28
Updated: 11/03/2025 17:54
Changes: 03/13/2023 15:28 (46), 04/04/2023 16:29 (2), 06/29/2024 11:33 (22), 03/03/2025 22:54 (12), 11/03/2025 17:54 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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