Critical severity · published Mar 13, 2023
CVE-2023-26076
An issue was discovered in Samsung Mobile Chipset and Baseband Modem Chipset for Exynos 1280, Exynos 2200, Exynos Modem 5123, Exynos Modem 5300, and Exynos Auto T5123
9.8
CVSS
0.9%
EPSS
No
On KEV
Description
An issue was discovered in Samsung Mobile Chipset and Baseband Modem Chipset for Exynos 1280, Exynos 2200, Exynos Modem 5123, Exynos Modem 5300, and Exynos Auto T5123. An intra-object overflow in the 5G SM message codec can occur due to insufficient parameter validation when decoding reserved options.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 60% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
E1
Exynos 1280 Firmware · Samsung
All versions, or not specified · source: NVD
E2
Exynos 2200 Firmware · Samsung
All versions, or not specified · source: NVD
EA
Exynos Auto T5123 Firmware · Samsung
All versions, or not specified · source: NVD
EM
Exynos Modem 5123 Firmware · Samsung
All versions, or not specified · source: NVD
EM
Exynos Modem 5300 Firmware · Samsung
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-26076
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-26076
packetstormsecurity.com
http://packetstormsecurity.com/files/171400/Shannon-Baseband-NrSmPcoCodec-Intra-Object-Overflow.html
googleprojectzero.blogspot.com
https://googleprojectzero.blogspot.com/2023/03/multiple-internet-to-baseband-remote-rce.html
Product
https://semiconductor.samsung.com/processor/mobile-processor/
Product
https://semiconductor.samsung.com/processor/modem/
Vendor Advisory
https://semiconductor.samsung.com/support/quality-support/product-security-updates/
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