How severe is CVE-2026-47311?

CVE-2026-47311 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-47311 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-47311?

CVE-2026-47311 affects Samsung Escargot. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-47311?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-47311 have an EU (EUVD) identifier?

Yes. CVE-2026-47311 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-30837.

When was CVE-2026-47311 published?

CVE-2026-47311 was published on 2026-05-19 and last updated on 2026-06-17.

CVE-2026-47311

CVE-2026-47311 is a high-severity vulnerability in Samsung Escargot with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-122.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 0% (20th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-30837
Weakness: CWE-122
Affected product: Samsung Escargot
Published: 2026-05-19
Last modified: 2026-06-17

Description

Heap-based buffer overflow vulnerability in Samsung Open Source Escargot allows Overflow Buffers. This issue affects Escargot: 590345cc6258317c5da850d846ce6baaf2afc2d3.

Frequently asked questions

What is CVE-2026-47311?: Heap-based buffer overflow vulnerability in Samsung Open Source Escargot allows Overflow Buffers. This issue affects Escargot: 590345cc6258317c5da850d846ce6baaf2afc2d3.
How severe is CVE-2026-47311?: CVE-2026-47311 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-47311 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-47311?: CVE-2026-47311 affects Samsung Escargot. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-47311?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-47311 have an EU (EUVD) identifier?: Yes. CVE-2026-47311 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-30837.
When was CVE-2026-47311 published?: CVE-2026-47311 was published on 2026-05-19 and last updated on 2026-06-17.

References

https://github.com/Samsung/escargot/pull/1565

Affected products (1)

cpe:2.3:a:samsung:escargot:2026-05-14:*:*:*:*:*:*:*

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