What is CVE-2023-43122?

CVE-2023-43122 is a medium-severity vulnerability in Samsung Exynos 1080, classified under Out-of-bounds Write. CVSS score: 4.8/10. Published 2023-12-13.

How severe is CVE-2023-43122?

Medium severity. CVSS v3 base score is 4.8 out of 10.

Buffer overflow in Samsung Exynos 1080

CVE-2023-43122

Samsung Mobile Processor and Wearable Processor (Exynos 980, 850, 1080, 2100, 2200, 1280, 1380, 1330, and W920) allow Information Disclosure in the Bootloader.

Vulnerability class: Buffer Overflow

Published 2023-12-13 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:H/UI:R/S:C/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (19.5th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 19th percentile — 19.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

semiconductor.samsung.com/support/quality-support/product-security-updates/ (Vendor Advisory)

Frequently asked questions

What is CVE-2023-43122?: CVE-2023-43122 is a medium-severity vulnerability in Samsung Exynos 1080, classified under Out-of-bounds Write. CVSS score: 4.8/10. Published 2023-12-13.
How severe is CVE-2023-43122?: Medium severity. CVSS v3 base score is 4.8 out of 10.