CVE-2015-7937

Stack-based buffer overflow in the GoAhead Web Server on Schneider Electric Modicon M340 PLC BMXNOx and BMXPx devices allows remote attackers to execute arbitrary code via a long password in HTTP Basic Authentication data.

Published: 2015-12-21 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2015-7937 is rated High Risk (70.6/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 2.50%). High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2015-7937

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-14 1.86% 2.50% +0.64%
2 2026-03-29 2.93% 1.86% -1.08%
3 2025-11-29 — 2.93% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-7937

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
10.0 2.0 HIGH
AV:N/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 10.0 10.0 [email protected]

Weakness enumeration for CVE-2015-7937

Affected software / configurations for CVE-2015-7937

Vendor Product Version Raw CPE
schneider-electric bmxnoc0401 — cpe:2.3:h:schneider-electric:bmxnoc0401:-:*:*:*:*:*:*:*
schneider-electric bmxnoe0100 — cpe:2.3:h:schneider-electric:bmxnoe0100:-:*:*:*:*:*:*:*
schneider-electric bmxnoe0100h — cpe:2.3:h:schneider-electric:bmxnoe0100h:-:*:*:*:*:*:*:*
schneider-electric bmxnoe0110 — cpe:2.3:h:schneider-electric:bmxnoe0110:-:*:*:*:*:*:*:*
schneider-electric bmxnoe0110h — cpe:2.3:h:schneider-electric:bmxnoe0110h:-:*:*:*:*:*:*:*
schneider-electric bmxnor0200 — cpe:2.3:h:schneider-electric:bmxnor0200:-:*:*:*:*:*:*:*
schneider-electric bmxnor0200h — cpe:2.3:h:schneider-electric:bmxnor0200h:-:*:*:*:*:*:*:*
schneider-electric bmxpra0100 — cpe:2.3:h:schneider-electric:bmxpra0100:-:*:*:*:*:*:*:*
schneider-electric modicon_m340_bmxp342020 — cpe:2.3:h:schneider-electric:modicon_m340_bmxp342020:-:*:*:*:*:*:*:*
schneider-electric modicon_m340_bmxp342020h — cpe:2.3:h:schneider-electric:modicon_m340_bmxp342020h:-:*:*:*:*:*:*:*
schneider-electric modicon_m340_bmxp342030 — cpe:2.3:h:schneider-electric:modicon_m340_bmxp342030:-:*:*:*:*:*:*:*
schneider-electric modicon_m340_bmxp3420302 — cpe:2.3:h:schneider-electric:modicon_m340_bmxp3420302:-:*:*:*:*:*:*:*
schneider-electric modicon_m340_bmxp3420302h — cpe:2.3:h:schneider-electric:modicon_m340_bmxp3420302h:-:*:*:*:*:*:*:*

References for CVE-2015-7937

cvelogic Threat Intelligence