How severe is CVE-2023-40353?

CVE-2023-40353 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-2023-40353 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-2023-40353?

CVE-2023-40353 primarily affects Samsung Exynos 980 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-2023-40353?

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

When was CVE-2023-40353 published?

CVE-2023-40353 was published on 2023-09-08 and last updated on 2026-06-17.

CVE-2023-40353

CVE-2023-40353 is a low-severity vulnerability in Samsung Exynos 980 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 980 Firmware
Published: 2023-09-08
Last modified: 2026-06-17

Description

An issue was discovered in Exynos Mobile Processor 980 and 2100. An integer overflow at a buffer index can prevent the execution of requested services via a crafted application.

Frequently asked questions

What is CVE-2023-40353?: An issue was discovered in Exynos Mobile Processor 980 and 2100. An integer overflow at a buffer index can prevent the execution of requested services via a crafted application.
How severe is CVE-2023-40353?: CVE-2023-40353 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-2023-40353 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-2023-40353?: CVE-2023-40353 primarily affects Samsung Exynos 980 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-2023-40353?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-40353 published?: CVE-2023-40353 was published on 2023-09-08 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_980_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:samsung:exynos_2100_firmware:-:*:*:*:*:*:*:*

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