What is CVE-2026-86315?

CVE-2026-86315 is a medium-severity vulnerability in Samsung Opensource Escargot, classified under CWE-197. CVSS score: 6.2/10. Published 2026-09-07.

How severe is CVE-2026-86315?

Medium severity. CVSS v3 base score is 6.2 out of 10.

Vulnerability in Samsung Opensource Escargot

CVE-2026-86315

An out-of-bounds write caused by numeric truncation Samsung Open Source Escargot on Linux x86-64 allows an attacker who can supply JavaScript for execution to corrupt native memory and crash the host process via a crafted class definition whose instance initialization entry count exceeds UINT16_MAX. This issue affects Escargot: 5dc93606abd42b859045add05d704a038e197359.

CVSS v3 metric

CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Samsung Opensource Escargot — versions 5dc93606abd42b859045add05d704a038e197359

Weakness classification (CWE)

CWE-197

References

PSIRT@samsung.com

Frequently asked questions

What is CVE-2026-86315?: CVE-2026-86315 is a medium-severity vulnerability in Samsung Opensource Escargot, classified under CWE-197. CVSS score: 6.2/10. Published 2026-09-07.
How severe is CVE-2026-86315?: Medium severity. CVSS v3 base score is 6.2 out of 10.