What is CVE-2026-86313?

CVE-2026-86313 is a high-severity vulnerability in Samsung Opensource Walrus, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2026-09-07.

How severe is CVE-2026-86313?

High severity. CVSS v3 base score is 7.8 out of 10.

Buffer overflow in Samsung Opensource Walrus

CVE-2026-86313

Out-of-bounds write vulnerability in Samsung Opensource Walrus allows Overflow Buffers. This issue affects Walrus: af80e665ea49d9003695a66502f841ed1d8397e7.

Vulnerability class: Buffer Overflow

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Samsung Opensource Walrus — versions af80e665ea49d9003695a66502f841ed1d8397e7

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

PSIRT@samsung.com

Frequently asked questions

What is CVE-2026-86313?: CVE-2026-86313 is a high-severity vulnerability in Samsung Opensource Walrus, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2026-09-07.
How severe is CVE-2026-86313?: High severity. CVSS v3 base score is 7.8 out of 10.