CVE-2026-86315
MEDIUMDescription
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.
How to fix
No published remediation has been found for this vulnerability's affected products yet.
Mitigation guidance may be in the linked vendor advisories in the References section below.
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CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploit Intelligence
Low risk: more likely to be exploited than 2% of all known CVEs.
References
Related Vulnerabilities
Other CWE-197 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2022-42475 | Critical | 9.8 | 99% | KEV + Ransom | Fix |
| CVE-2025-6965 | High | 7.7 | 73% | - | Fix |
| CVE-2024-21310 | High | 7.8 | 12% | - | Fix |
| CVE-2024-43639 | Critical | 9.8 | 8.9% | - | Fix |
| CVE-2024-38125 | High | 7.8 | 5.9% | - | Fix |
| CVE-2024-28944 | High | 8.8 | 2.4% | - | Fix |
Common questions
How do I fix CVE-2026-86315?
No published fix for CVE-2026-86315 has been found yet. Check the linked vendor advisories for guidance as it becomes available.
Is CVE-2026-86315 being actively exploited?
Not that we know of. CVE-2026-86315 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.12% is the estimated probability that it will be exploited in the next 30 days. That is higher than 2% of all scored CVEs.
How severe is CVE-2026-86315?
CVE-2026-86315 has a CVSS v3 base score of 6.2, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-09-08.