CVE-2020-7541
CVE-2020-7541 is a medium-severity vulnerability in Schneider-electric Modicon M340 Bmxp341000 Firmware with a CVSS 3.x base score of 5.3. 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-425.
Key facts
- Severity: Medium (CVSS 3.x base score 5.3)
- CVSS v2: 5.0
- EPSS exploit prediction: 1% (55th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-425
- Affected product: Schneider-electric Modicon M340 Bmxp341000 Firmware
- Published:
- Last modified:
Description
A CWE-425: Direct Request ('Forced Browsing') vulnerability exists in the Web Server on Modicon M340, Legacy Offers Modicon Quantum and Modicon Premium and associated Communication Modules (see security notification for affected versions), that could cause disclosure of sensitive data when sending a specially crafted request to the controller over HTTP.
Frequently asked questions
- What is CVE-2020-7541?
- A CWE-425: Direct Request ('Forced Browsing') vulnerability exists in the Web Server on Modicon M340, Legacy Offers Modicon Quantum and Modicon Premium and associated Communication Modules (see security notification for affected versions), that could cause disclosure of sensitive data when sending a specially crafted request to the controller over HTTP.
- How severe is CVE-2020-7541?
- CVE-2020-7541 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
- Is CVE-2020-7541 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-7541?
- CVE-2020-7541 primarily affects Schneider-electric Modicon M340 Bmxp341000 Firmware. In total, 20 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2020-7541?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2020-7541 published?
- CVE-2020-7541 was published on 2020-12-11 and last updated on 2026-06-17.
References
Affected products (20)
- 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:bmxnoe0100_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:bmxnoe0110_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:bmxnoc0401_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:tsxp574634_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:tsxp575634_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:tsxp576634_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:tsxety4103_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:tsxety5103_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:140cpu65150_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:140noe77111_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:140noc78100_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:140noc78000_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:140noc77101_firmware:*:*:*:*:*:*:*:*
More vulnerabilities in Schneider-electric Modicon M340 Bmxp341000 Firmware
- CVE-2022-37300 — Critical (CVSS 9.8): A CWE-640: Weak Password Recovery Mechanism for Forgotten Password vulnerability exists that could cause unauthorized…
- CVE-2020-7540 — Critical (CVSS 9.8): A CWE-306: Missing Authentication for Critical Function vulnerability exists in the Web Server on Modicon M340, Legacy…
- CVE-2020-7533 — Critical (CVSS 9.8): CWE-287: Improper Authentication vulnerability exists which could cause the execution of commands on the webserver…
- 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-2018-7760 — Critical (CVSS 9.8): An authorization bypass vulnerability exists in Schneider Electric's Modicon M340, Modicon Premium, Modicon Quantum…
- CVE-2018-7242 — Critical (CVSS 9.8): Vulnerable hash algorithms exists in Schneider Electric's Modicon Premium, Modicon Quantum, Modicon M340, and…
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