CVE-2020-5655
Last modified
CVE-2020-5655 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. NULL pointer dereferences vulnerability in TCP/IP function included in the firmware of MELSEC iQ-R series (RJ71EIP91 EtherNet/IP Network Interface Module First 2 digits of serial number are '02' or before, RJ71PN92 PROFINET IO Controller Module First 2 digits of serial number are '01' or before, RD81DL96 High Speed Data Logger Module First 2 digits of serial number are '08' or before, RD81MES96N MES Interface Module First 2 digits of serial number are '04' or before, and RD81OPC96 OPC UA Server Module First 2 digits of serial number are '04' or before) allows a remote unauthenticated attacker to stop the network functions of the products via a specially crafted packet.. EPSS estimates a 2.91% chance of exploitation in the next 30 days.
Description
NULL pointer dereferences vulnerability in TCP/IP function included in the firmware of MELSEC iQ-R series (RJ71EIP91 EtherNet/IP Network Interface Module First 2 digits of serial number are '02' or before, RJ71PN92 PROFINET IO Controller Module First 2 digits of serial number are '01' or before, RD81DL96 High Speed Data Logger Module First 2 digits of serial number are '08' or before, RD81MES96N MES Interface Module First 2 digits of serial number are '04' or before, and RD81OPC96 OPC UA Server Module First 2 digits of serial number are '04' or before) allows a remote unauthenticated attacker to stop the network functions of the products via a specially crafted packet.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mitsubishielectric | Melsec Iq-Rj71eip91 Firmware | All versions |
| Mitsubishielectric | Melsec Iq-Rj71pn92 Firmware | All versions |
| Mitsubishielectric | Melsec Iq-Rd81dl96 Firmware | All versions |
| Mitsubishielectric | Melsec Iq-Rd81mes96n Firmware | All versions |
| Mitsubishielectric | Melsec Iq-Rd81opc96 Firmware | All versions |
References
- https://jvn.jp/vu/JVNVU92513419/index.htmlThird Party Advisory
- https://jvn.jp/vu/JVNVU92513419/index.htmlThird Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-5655?
How severe is CVE-2020-5655?
How do I fix CVE-2020-5655?
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-2020-5649Resource management error vulnerability in TCP/IP function i…7.5
- CVE-2020-5650Cross-site scripting vulnerability in Simple Download Monito…6.1
- CVE-2020-5651SQL injection vulnerability in Simple Download Monitor 3.8.8…8.8
- CVE-2020-5652Uncontrolled resource consumption vulnerability in Ethernet …7.5
- CVE-2020-5653Buffer overflow vulnerability in TCP/IP function included in…9.8
- CVE-2020-5654Session fixation vulnerability in TCP/IP function included i…7.5
- CVE-2020-5656Improper access control vulnerability in TCP/IP function inc…9.8
- CVE-2020-5657Improper neutralization of argument delimiters in a command …6.5
- CVE-2020-5658Resource Management Errors vulnerability in TCP/IP function …7.5
- CVE-2020-5659SQL injection vulnerability in the XooNIps 3.49 and earlier …8.8
- CVE-2020-5662Reflected cross-site scripting vulnerability in XooNIps 3.49…5.4
- CVE-2020-5663Stored cross-site scripting vulnerability in XooNIps 3.49 an…5.4
Are you affected by CVE-2020-5655?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST