How severe is CVE-2018-7760?

CVE-2018-7760 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-7760 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-7760?

CVE-2018-7760 primarily affects Schneider-electric Bmxnor0200 Firmware. In total, 57 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-7760?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2018-7760 published?

CVE-2018-7760 was published on 2018-04-18 and last updated on 2026-06-17.

CVE-2018-7760

CVE-2018-7760 is a critical-severity vulnerability in Schneider-electric Bmxnor0200 Firmware with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-287.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 1% (71st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Schneider-electric Bmxnor0200 Firmware
Published: 2018-04-18
Last modified: 2026-06-17

Description

An authorization bypass vulnerability exists in Schneider Electric's Modicon M340, Modicon Premium, Modicon Quantum PLC, BMXNOR0200. Requests to CGI functions allow malicious users to bypass authorization.

Frequently asked questions

What is CVE-2018-7760?: An authorization bypass vulnerability exists in Schneider Electric's Modicon M340, Modicon Premium, Modicon Quantum PLC, BMXNOR0200. Requests to CGI functions allow malicious users to bypass authorization.
How severe is CVE-2018-7760?: CVE-2018-7760 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-7760 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-7760?: CVE-2018-7760 primarily affects Schneider-electric Bmxnor0200 Firmware. In total, 57 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-7760?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2018-7760 published?: CVE-2018-7760 was published on 2018-04-18 and last updated on 2026-06-17.

References

https://www.schneider-electric.com/en/download/document/SEVD-2018-081-02/

Affected products (57)

cpe:2.3:o:schneider-electric:bmxnor0200_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:bmxnor0200h_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:140cpu65150_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:140cpu31110_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:140cpu43412u_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:140cpu65160_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:140cpu65260_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:140cpu65860_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:140cpu65160s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:140cpu65150c_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:140cpu31110c_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:140cpu43412uc_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:140cpu65160c_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:140cpu65260c_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:140cpu65860c_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:modicon_m340_bmxp341000_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:modicon_m340_bmxp342000_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:modicon_m340_bmxp3420102_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:modicon_m340_bmxp3420102cl_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:modicon_m340_bmxp342020_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:modicon_m340_bmxp3420302_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:modicon_m340_bmxp3420302cl_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:modicon_m340_bmxp3420302h_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:modicon_m340_bmxp342020h_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:modicon_m340_bmxp341000h_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:tsxh5724m_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:tsxh5744m_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:tsxp57104m_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:tsxp57154m_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:tsxp571634m_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:tsxp57204m_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:tsxp57254m_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:tsxp572634m_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:tsxp57304m_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:tsxp57354m_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:tsxp573634m_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:tsxp57454m_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:tsxp574634m_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:tsxp575634m_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:tsxp576634m_firmware:-:*:*:*:*:*:*:*

More vulnerabilities in Schneider-electric Bmxnor0200 Firmware

CVE-2018-7761 — Critical (CVSS 9.8): A vulnerability exists in the HTTP request parser in Schneider Electric's Modicon M340, Modicon Premium, Modicon…
CVE-2018-7242 — Critical (CVSS 9.8): Vulnerable hash algorithms exists in Schneider Electric's Modicon Premium, Modicon Quantum, Modicon M340, and…
CVE-2018-7241 — Critical (CVSS 9.8): Hard coded accounts exist in Schneider Electric's Modicon Premium, Modicon Quantum, Modicon M340, and BMXNOR0200…
CVE-2018-7762 — High (CVSS 7.5): A vulnerability exists in the web services to process SOAP requests in Schneider Electric's Modicon M340, Modicon…
CVE-2018-7759 — High (CVSS 7.5): A buffer overflow vulnerability exists in Schneider Electric's Modicon M340, Modicon Premium, Modicon Quantum PLC,…

All CVEs affecting Schneider-electric Bmxnor0200 Firmware →

Other CWE-287 (Improper Authentication) vulnerabilities

CVE-2026-45480 — Critical (CVSS 10.0): Improper authentication in Azure Active Directory allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-46389 — Critical (CVSS 10.0): UDS Identity Config builds the Keycloak configuration image (realm, plugins, theme, truststore, JARs) consumed by UDS…
CVE-2026-10611 — Critical (CVSS 10.0): An authentication bypass vulnerability exists in MISP when LDAP mixed authentication is enabled with OTP enforcement.…
CVE-2026-47280 — Critical (CVSS 10.0): Improper authentication in Azure Resource Manager (ARM) allows an unauthorized attacker to elevate privileges over a…
CVE-2026-42822 — Critical (CVSS 10.0): Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges…
CVE-2026-20182 — Critical (CVSS 10.0): May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and…

Browse all CWE-287 (Improper Authentication) vulnerabilities →