How severe is CVE-2023-40218?

CVE-2023-40218 has a CVSS 3.x base score of 2.0, rated low severity. It is exploitable over local access with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2023-40218 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-40218?

CVE-2023-40218 primarily affects Samsung Exynos 9820 Firmware. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-40218?

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

When was CVE-2023-40218 published?

CVE-2023-40218 was published on 2023-09-12 and last updated on 2026-06-17.

CVE-2023-40218

CVE-2023-40218 is a low-severity vulnerability in Samsung Exynos 9820 Firmware with a CVSS 3.x base score of 2.0. 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-190.

Key facts

Severity: Low (CVSS 3.x base score 2.0)
EPSS exploit prediction: 0% (7th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-190
Affected product: Samsung Exynos 9820 Firmware
Published: 2023-09-12
Last modified: 2026-06-17

Description

An issue was discovered in the NPU kernel driver in Samsung Exynos Mobile Processor 9820, 980, 2100, 2200, 1280, and 1380. An integer overflow can bypass detection of error cases via a crafted application.

Frequently asked questions

What is CVE-2023-40218?: An issue was discovered in the NPU kernel driver in Samsung Exynos Mobile Processor 9820, 980, 2100, 2200, 1280, and 1380. An integer overflow can bypass detection of error cases via a crafted application.
How severe is CVE-2023-40218?: CVE-2023-40218 has a CVSS 3.x base score of 2.0, rated low severity. It is exploitable over local access with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2023-40218 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-40218?: CVE-2023-40218 primarily affects Samsung Exynos 9820 Firmware. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-40218?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-40218 published?: CVE-2023-40218 was published on 2023-09-12 and last updated on 2026-06-17.

References

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

Affected products (6)

cpe:2.3:o:samsung:exynos_9820_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:samsung:exynos_980_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:-:*:*:*:*:*:*:*

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