CVE-2020-5543
Last modified
CVE-2020-5543 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. TCP function included in the firmware of Mitsubishi Electric MELQIC IU1 series IU1-1M20-D firmware version 1.0.7 and earlier does not properly manage sessions, which allows remote attackers to stop the network functions or execute malware via a specially crafted packet.. EPSS estimates a 2.15% chance of exploitation in the next 30 days.
Description
TCP function included in the firmware of Mitsubishi Electric MELQIC IU1 series IU1-1M20-D firmware version 1.0.7 and earlier does not properly manage sessions, which allows remote attackers to stop the network functions or execute malware via a specially crafted packet.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mitsubishielectric | Iu1-1m20-D Firmware | <= 1.0.7 |
References
- https://jvn.jp/en/vu/JVNVU92370624/index.htmlThird Party Advisory
- https://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2019-004.pdfPatch, Vendor Advisory
- https://jvn.jp/en/vu/JVNVU92370624/index.htmlThird Party Advisory
- https://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2019-004.pdfPatch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-5543?
How severe is CVE-2020-5543?
How do I fix CVE-2020-5543?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2020
- CVE-2020-5537Cybozu Desktop for Windows 2.0.23 to 2.2.40 allows remote co…9.8
- CVE-2020-5538Improper Access Control in PALLET CONTROL Ver. 6.3 and earli…7.8
- CVE-2020-5539GRANDIT Ver.1.6, Ver.2.0, Ver.2.1, Ver.2.2, Ver.2.3, and Ver…6.5
- CVE-2020-5540Cross-site scripting vulnerability in CyberMail Ver.6.x and …6.1
- CVE-2020-5541Open redirect vulnerability in CyberMail Ver.6.x and Ver.7.x…6.1
- CVE-2020-5542Buffer error vulnerability in TCP function included in the f…9.8
- CVE-2020-5544Null Pointer Dereference vulnerability in TCP function inclu…9.8
- CVE-2020-5545TCP function included in the firmware of Mitsubishi Electric…9.8
- CVE-2020-5546Improper Neutralization of Argument Delimiters in a Command …8.8
- CVE-2020-5547Resource Management Errors vulnerability in TCP function inc…9.8
- CVE-2020-5548Yamaha LTE VoIP Router(NVR700W firmware Rev.15.00.15 and ear…7.5
- CVE-2020-5549Cross-site request forgery (CSRF) vulnerability in EasyBlock…8.8
Are you affected by CVE-2020-5543?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST
