How severe is CVE-2023-50803?

CVE-2023-50803 has a CVSS 3.x base score of 3.7, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2023-50803 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-50803?

CVE-2023-50803 primarily affects Samsung Exynos 9820 Firmware. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-50803?

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

Does CVE-2023-50803 have an EU (EUVD) identifier?

Yes. CVE-2023-50803 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-55536.

When was CVE-2023-50803 published?

CVE-2023-50803 was published on 2024-06-05 and last updated on 2026-06-17.

CVE-2023-50803

CVE-2023-50803 is a low-severity vulnerability in Samsung Exynos 9820 Firmware with a CVSS 3.x base score of 3.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Low (CVSS 3.x base score 3.7)
EPSS exploit prediction: 0% (26th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-55536
Affected product: Samsung Exynos 9820 Firmware
Published: 2024-06-05
Last modified: 2026-06-17

Description

An issue was discovered in Samsung Mobile Processor, and Modem Exynos 9820, Exynos 9825, Exynos 980, Exynos 990, Exynos 850, Exynos 1080, Exynos 2100, Exynos 2200, Exynos 1280, Exynos 1380, Exynos 1330, Exynos Modem 5123, Exynos Modem 5300. The baseband software does not properly check replay protection specified by the NAS (Non-Access-Stratum) module. This can lead to denial of service.

Frequently asked questions

What is CVE-2023-50803?: An issue was discovered in Samsung Mobile Processor, and Modem Exynos 9820, Exynos 9825, Exynos 980, Exynos 990, Exynos 850, Exynos 1080, Exynos 2100, Exynos 2200, Exynos 1280, Exynos 1380, Exynos 1330, Exynos Modem 5123, Exynos Modem 5300. The baseband software does not properly check replay protection specified by the NAS (Non-Access-Stratum) module. This can lead to denial of service.
How severe is CVE-2023-50803?: CVE-2023-50803 has a CVSS 3.x base score of 3.7, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2023-50803 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-50803?: CVE-2023-50803 primarily affects Samsung Exynos 9820 Firmware. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-50803?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-50803 have an EU (EUVD) identifier?: Yes. CVE-2023-50803 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-55536.
When was CVE-2023-50803 published?: CVE-2023-50803 was published on 2024-06-05 and last updated on 2026-06-17.

References

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

Affected products (13)

cpe:2.3:o:samsung:exynos_9820_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:samsung:exynos_9825_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:samsung:exynos_980_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:samsung:exynos_990_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:samsung:exynos_850_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:-:*:*:*:*:*:*:*
cpe:2.3:o:samsung:exynos_1330_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:samsung:exynos_modem_5123_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:samsung:exynos_modem_5300_firmware:-:*:*:*:*:*:*:*

More vulnerabilities in Samsung Exynos 9820 Firmware

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CVE-2023-50805 — High (CVSS 8.1): A vulnerability was discovered in Samsung Mobile Processor, Wearable Processor, and Modems with versions Exynos 9820,…
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