CVE-2026-47311: Heap-based buffer overflow vulnerability in Samsung Open Source Escargot allows Overflow Buffers. This issue

Routine

HIGH 7.8DOWNGRADE

CVE-2026-47311 is a high-severity flaw (CVSS 7.8) affecting escargot. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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

Why this priority

High severity

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.3% (top 79%)
CISA exploited list	No
Weakness	CWE-122
Published	2026-05-19
Last modified	2026-07-24

Publisher (CNA): Samsung TV & Appliance · Vendor: samsung

Last updated 2026-07-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-19 07:16 UTCPublished CVE record published
2026-07-24 12:10 UTCUpdated Record last modified

samsung escargot DOWNGRADE

Affected: 2026-05-14

Fixed in: no fixed release known

Safe to downgrade to: a release before 2026-05-14

1. Check installed version

apt-cache policy escargot || rpm -q escargot || escargot --version

2. No fixed release: DOWNGRADE to a release before 2026-05-14 (Debian / Ubuntu)

apt-cache madison escargot sudo apt install escargot=<VERSION_BEFORE_2026-05-14> sudo apt-mark hold escargot

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list escargot sudo dnf downgrade escargot-<VERSION_BEFORE_2026-05-14> sudo dnf versionlock add escargot

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-47311?

escargot: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-47311 being exploited?

CVE-2026-47311 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-47311 affect?

CVE-2026-47311 affects escargot. Severity is high (CVSS 7.8). Heap-based buffer overflow vulnerability in Samsung Open Source Escargot allows Overflow Buffers. This issue affects Escargot: 590345cc6258317c5da850d846ce6baaf2afc2d3.

How urgent is CVE-2026-47311?

Priority 33/100. High severity

Software pages

Samsung vulnerabilities

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References

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