How severe is CVE-2023-31116?

CVE-2023-31116 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-31116 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-31116?

CVE-2023-31116 primarily affects Samsung Exynos 5123 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-31116?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2023-31116 published?

CVE-2023-31116 was published on 2023-06-07 and last updated on 2026-06-17.

CVE-2023-31116

CVE-2023-31116 is a critical-severity vulnerability in Samsung Exynos 5123 Firmware with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-276.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (45th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-276
Affected product: Samsung Exynos 5123 Firmware
Published: 2023-06-07
Last modified: 2026-06-17

Description

An issue was discovered in the Shannon RCS component in Samsung Exynos Modem 5123 and 5300. An incorrect default permission can cause unintended querying of RCS capability via a crafted application.

Frequently asked questions

What is CVE-2023-31116?: An issue was discovered in the Shannon RCS component in Samsung Exynos Modem 5123 and 5300. An incorrect default permission can cause unintended querying of RCS capability via a crafted application.
How severe is CVE-2023-31116?: CVE-2023-31116 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-31116 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-31116?: CVE-2023-31116 primarily affects Samsung Exynos 5123 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-31116?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2023-31116 published?: CVE-2023-31116 was published on 2023-06-07 and last updated on 2026-06-17.

References

https://semiconductor.samsung.com/support/quality-support/product-security-updates/

Affected products (2)

cpe:2.3:o:samsung:exynos_5123_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:samsung:exynos_5300_firmware:-:*:*:*:*:*:*:*

More vulnerabilities in Samsung Exynos 5123 Firmware

CVE-2023-31114 — Critical (CVSS 9.1): An issue was discovered in the Shannon RCS component in Samsung Exynos Modem 5123 and 5300. Incorrect resource transfer…
CVE-2023-31115 — High (CVSS 7.5): An issue was discovered in the Shannon RCS component in Samsung Exynos Modem 5123 and 5300. Incorrect resource transfer…
CVE-2023-29091 — Medium (CVSS 6.8): An issue was discovered in Samsung Exynos Mobile Processor, Automotive Processor and Modem for Exynos Modem 5123,…
CVE-2023-29090 — Medium (CVSS 6.8): An issue was discovered in Samsung Exynos Mobile Processor, Automotive Processor and Modem for Exynos Modem 5123,…
CVE-2023-29089 — Medium (CVSS 6.8): An issue was discovered in Samsung Exynos Mobile Processor, Automotive Processor and Modem for Exynos Modem 5123,…
CVE-2023-29088 — Medium (CVSS 6.8): An issue was discovered in Samsung Exynos Mobile Processor, Automotive Processor and Modem for Exynos Modem 5123,…

All CVEs affecting Samsung Exynos 5123 Firmware →

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