What’s Vulnerable › Vulnerabilities

CVE-2023-21455

• Severity: critical (CVSS 9.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-03-16 · updated 2026-06-17
• Weakness: CWE-287

Description

Improper authorization implementation in Exynos baseband prior to SMR Mar-2023 Release 1 allows incorrect handling of unencrypted message.

Affected products

• Samsung Exynos Firmware: all versions

References

• https://security.samsungmobile.com/securityUpdate.smsb?year=2023&month=03
• https://security.samsungmobile.com/securityUpdate.smsb?year=2023&month=03

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