CVE-2020-7549
5.3 · MEDIUMA CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in the Web Server on Modicon M340, Legacy Offers Modicon Quantum and Modicon Premium and associated Communicatio…
Overview
CVE-2020-7549 is a medium-severity vulnerability. It was published on December 11, 2020 and has a CVSS 3.1 base score of 5.3 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical description
A CWE-754: Improper Check for Unusual or Exceptional Conditions 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 denial of HTTP and FTP services when a series of specially crafted requests is sent to the controller over HTTP.
Remediation
Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How CyberStrike helps
Reason, not just scan
It reasons through your app's logic the way a human pentester would, so it finds flaws signature scanners miss.
Learn moreVerified findings
Every finding is proven exploitable before you see it, which cuts the false positives that bury real risk.
Learn moreAI-driven DAST and SAST
Probe running apps and read source from one engine, so issues are caught before and after they ship.
Learn moreOpen source
Read exactly how it tests and what it reports. CyberStrike is open source and in early access.
View the repo
Frequently asked questions
What is CVE-2020-7549?
CVE-2020-7549 is a medium-severity vulnerability. It was published on December 11, 2020 and has a CVSS 3.1 base score of 5.3 (MEDIUM).
How severe is CVE-2020-7549?
This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2020-7549?
Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2020-7549?
CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2020-7549 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.
Related MEDIUM CVEs from 2020
View all- 6.9CVE-2019-16791
In postfix-mta-sts-resolver before 0.5.1, All users can receive incorrect response from daemon under
View details - 6.9CVE-2019-11999
Potential security vulnerabilities have been identified in HPE OpenCall Media Platform (OCMP) result
View details - 6.9CVE-2020-11023
In jQuery versions greater than or equal to 1.0.3 and before 3.5.0, passing HTML containing <option>
View details - 6.9CVE-2020-11022
In jQuery starting with 1.12.0 and before 3.5.0, passing HTML from untrusted sources - even after sa
View details - 6.9CVE-2020-11051
In Wiki.js before 2.3.81, there is a stored XSS in the Markdown editor. An editor with write access
View details - 6.9CVE-2020-10023
The shell subsystem contains a buffer overflow, whereby an adversary with physical access to the dev
View details - 6.9CVE-2020-11038
In FreeRDP less than or equal to 2.0.0, an Integer Overflow to Buffer Overflow exists. When using /v
View details - 6.9CVE-2020-15085
In Saleor Storefront before version 2.10.3, request data used to authenticate customers was inadvert
View details - 6.9CVE-2020-7310
Privilege Escalation vulnerability in the installer in McAfee McAfee Total Protection (MTP) trial pr
View details - 6.9CVE-2020-7323
Authentication Protection Bypass vulnerability in McAfee Endpoint Security (ENS) for Windows prior t
View details - 6.9CVE-2020-5388
Dell Inspiron 15 7579 2-in-1 BIOS versions prior to 1.31.0 contain an Improper SMM communication buf
View details - 6.9CVE-2020-16988
Azure Sphere Elevation of Privilege Vulnerability
View details