How severe is CVE-2023-42483?

CVE-2023-42483 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over local access with high attack complexity, requires high privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-42483 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-42483?

CVE-2023-42483 primarily affects Samsung Exynos 9820 Firmware. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-42483?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-42483 published?

CVE-2023-42483 was published on 2023-12-13 and last updated on 2026-06-17.

CVE-2023-42483

CVE-2023-42483 is a medium-severity vulnerability in Samsung Exynos 9820 Firmware with a CVSS 3.x base score of 6.3. 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-367.

Key facts

Severity: Medium (CVSS 3.x base score 6.3)
EPSS exploit prediction: 0% (4th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-367
Affected product: Samsung Exynos 9820 Firmware
Published: 2023-12-13
Last modified: 2026-06-17

Description

A TOCTOU race condition in Samsung Mobile Processor Exynos 9820, Exynos 980, Exynos 1080, Exynos 2100, Exynos 2200, Exynos 1280, and Exynos 1380 can cause unexpected termination of a system.

Frequently asked questions

What is CVE-2023-42483?: A TOCTOU race condition in Samsung Mobile Processor Exynos 9820, Exynos 980, Exynos 1080, Exynos 2100, Exynos 2200, Exynos 1280, and Exynos 1380 can cause unexpected termination of a system.
How severe is CVE-2023-42483?: CVE-2023-42483 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over local access with high attack complexity, requires high privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-42483 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-42483?: CVE-2023-42483 primarily affects Samsung Exynos 9820 Firmware. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-42483?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-42483 published?: CVE-2023-42483 was published on 2023-12-13 and last updated on 2026-06-17.

References

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

Affected products (7)

cpe:2.3:o:samsung:exynos_9820_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:samsung:exynos_980_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:samsung:exynos_1080_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:samsung:exynos_2100_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:samsung:exynos_2200_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:samsung:exynos_1280_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:samsung:exynos_1380_firmware:-:*:*:*:*:*:*:*

More vulnerabilities in Samsung Exynos 9820 Firmware

CVE-2023-50806 — High (CVSS 8.4): A vulnerability was discovered in Samsung Mobile Processor, Wearable Processor, and Modems with versions Exynos 9820,…
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