What’s Vulnerable › Vulnerabilities

CVE-2023-21517

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-06-28 · updated 2026-06-17
• Weakness: CWE-120

Description

Heap out-of-bound write vulnerability in Exynos baseband prior to SMR Jun-2023 Release 1 allows remote attacker to execute arbitrary code.

Affected products

• Samsung Exynos: all versions

References

• https://security.samsungmobile.com/securityUpdate.smsb?year=2023&month=06
• https://security.samsungmobile.com/securityUpdate.smsb?year=2023&month=06

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