Is CVE-2026-6839 in the CISA KEV catalog?

No. CVE-2026-6839 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-6839?

CVE-2026-6839 has a CVSS v3 base score of 6.6 (MEDIUM).

What is the EPSS score for CVE-2026-6839?

CVE-2026-6839 has an EPSS score of 0.10% (1th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-6839?

Upgrade one to 1.30.0 or later.

CVE & CISA-KEV Catalog

CVE-2026-6839

MEDIUM

6.6

CVSS v3

NVD

Description

Improper validation of STRING tensor offsets could allows malformed string metadata to trigger out of bounds access during constant tensor import in Samsung Open Source ONE Affected version is prior to commit 1.30.0.

CWE-1284

How to fix

Remediation Available

oneNVD

Affected:< 1.30.0Fixed in:1.30.0CVE-2026-6839derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H

Exploit Intelligence

0.10%probability of exploitation in 30 days

1stpercentile

Low risk: more likely to be exploited than 1% of all known CVEs.

References

Patch1

github.com

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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 2026-04-27.