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Vulnerability record · CVE-2026-78439 · published 8 September 2026
CVE-2026-78439: Stack-based buffer overflow vulnerability
Stack-based buffer overflow in Microsoft Graphics Component allows an unauthorized attacker to execute code over a network.
8.8 CVSS 3.1 High EPSS 0.84% · top 43.9% CWE-121 · Stack-based buffer overflow Undergoing Analysis
8.8CVSS 3.1 base score
0.84%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
1References
17 Sep 2026Last modified by NVD
Description
Stack-based buffer overflow in Microsoft Graphics Component allows an unauthorized attacker to execute code over a network.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
References
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Source: NIST National Vulnerability Database (record CVE-2026-78439), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.
