Resource exhaustion in Mitsubishielectric Melsec Iq-R00cpu
CVE-2020-5652
Uncontrolled resource consumption vulnerability in Ethernet Port on MELSEC iQ-R, Q and L series CPU modules (R 00/01/02 CPU firmware versions '20' and earlier, R 04/08/16/32/120 (EN) CPU firmware versions '52' and earlier, R 08/16/32/120 SFCPU firmware versions '22' and earlier, R 08/16/32/120 PCPU all versions, R 08/16/32/120 PSFCPU all versions, R 16/32/64 MTCPU all versions, Q03 UDECPU, Q 04/06/10/13/20/26/50/100 UDEHCPU serial number '22081' and earlier , Q 03/04/06/13/26 UDVCPU serial number '22031' and earlier, Q 04/06/13/26 UDPVCPU serial number '22031' and earlier, Q 172/173 DCPU all versions, Q 172/173 DSCPU all versions, Q 170 MCPU all versions, Q 170 MSCPU all versions, L 02/06/26 CPU (-P) and L 26 CPU - (P) BT all versions) allows a remote unauthenticated attacker to stop the Ethernet communication functions of the products via a specially crafted packet, which may lead to a denial of service (DoS) condition .
Vulnerability class: DoS (Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.036 (89.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 89.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.036 · newest: 0.036 · change: 0.000
Affected products
- Mitsubishielectric Melsec Iq-R00cpu
- Mitsubishielectric Melsec Iq-R00cpu Firmware — versions 20
- Mitsubishielectric Melsec Iq-R01cpu
- Mitsubishielectric Melsec Iq-R01cpu Firmware — versions 20
- Mitsubishielectric Melsec Iq-R02cpu
- Mitsubishielectric Melsec Iq-R02cpu Firmware — versions 20
- Mitsubishielectric Melsec Iq-R04encpu
- Mitsubishielectric Melsec Iq-R04encpu Firmware — versions 52
- Mitsubishielectric Melsec Iq-R08encpu
- Mitsubishielectric Melsec Iq-R08encpu Firmware — versions 52
Weakness classification (CWE)
References
- www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2020-013.pdf (Vendor Advisory)
- www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-013_en.pdf (Vendor Advisory)
- jvn.jp/vu/JVNVU96558207/index.html (Third Party Advisory)
Frequently asked questions
- What is CVE-2020-5652?
- CVE-2020-5652 is a high-severity vulnerability in Mitsubishielectric Melsec Iq-R00cpu, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2020-11-02.
- How severe is CVE-2020-5652?
- High severity. CVSS v3 base score is 7.5 out of 10.