Improper authentication in Samsung Mobile Devices
Priority MEDIUM 42CWE-287Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-287.
Summary
Error in 3GPP specification implementation in Exynos baseband prior to SMR Apr-2023 Release 1 allows incorrect handling of unencrypted message.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00308 23rd percentileScored 2026-11-07
Fix Fixed Samsung Mobile Devices (Samsung Mobile): SMR Apr-2023 Release in Select devices using Exynos chipsets
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA Samsung Mobile Devices (Samsung Mobile) Fixed in SMR Apr-2023 Release in Select devices using Exynos chipsets
Timeline
- 2026-10-02 Threatist record created from CVE-2023-21467
- 2026-10-03 Alias added: GHSA-p247-9j5p-wwfc
References
More Samsung Exynos vulnerabilities
- TI-2023-07918 Buffer overflow in Samsung Mobile Devices CVSS 3.1CRITICAL 9.8
- TI-2020-08722 An issue was discovered on Samsung mobile devices with any (before February 2020 for… CVSS 3.1CRITICAL 9.8
- TI-2020-15314 An issue was discovered on Samsung mobile devices with software through 2020-04-02… CVSS 3.1CRITICAL 9.1
Sources
- CVE-2023-21467 · CVE Program
- CVE-2023-21467 · NVD
- FIRST EPSS
- GHSA-p247-9j5p-wwfc · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences