CVE-2026-28841

Description

A buffer overflow was addressed with improved size validation. This issue is fixed in macOS Tahoe 26.4. A buffer overflow may result in memory corruption and unexpected app termination.

CVSS Details

CVSS Score

6.2

Severity

MEDIUM

CVSS Vector

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

Configurations (Affected Products)

cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* - VULNERABLE

macOS Tahoe < 26.4

PoC / Exploit Code

⚠ For Security Research Only

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

python

#include <stdio.h>
#include <string.h>

// Simulated vulnerable function in macOS Tahoe component
void vulnerable_function(char *input) {
    char buffer[64];
    // Vulnerability: No bounds checking on strcpy
    strcpy(buffer, input);
    printf("Processed input: %s\n", buffer);
}

int main() {
    // Payload larger than buffer size (64 bytes)
    char large_input[128];
    memset(large_input, 'A', 127);
    large_input[127] = '\0';

    printf("Triggering buffer overflow in CVE-2026-28841...\n");
    vulnerable_function(large_input);
    
    return 0;
}

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-28841
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-28841
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-28841/
[4] VulDB https://vuldb.com/cve/CVE-2026-28841
[5] https://support.apple.com/en-us/126794

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-28841", "sourceIdentifier": "[email protected]", "published": "2026-03-25T01:17:08.987", "lastModified": "2026-03-25T20:52:06.887", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "A buffer overflow was addressed with improved size validation. This issue is fixed in macOS Tahoe 26.4. A buffer overflow may result in memory corruption and unexpected app termination."}, {"lang": "es", "value": "Un desbordamiento de búfer se abordó con una validación de tamaño mejorada. Este problema está solucionado en macOS Tahoe 26.4. Un desbordamiento de búfer puede provocar corrupción de memoria y la terminación inesperada de la aplicación."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 6.2, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.5, "impactScore": 3.6}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-120"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*", "versionStartIncluding": "26.0", "versionEndExcluding": "26.4", "matchCriteriaId": "6CF848CD-25D4-4371-BEF3-1ACCE47AD81F"}]}]}], "references": [{"url": "https://support.apple.com/en-us/126794", "source": "[email protected]", "tags": ["Release Notes", "Vendor Advisory"]}]}}