NULL pointer dereference in Mitsubishielectric Coreos
CVE-2020-5646
NULL pointer dereferences vulnerability in TCP/IP function included in the firmware of GT14 Model of GOT 1000 series (GT1455-QTBDE CoreOS version "05.65.00.BD" and earlier, GT1450-QMBDE CoreOS version "05.65.00.BD" and earlier, GT1450-QLBDE CoreOS version "05.65.00.BD" and earlier, GT1455HS-QTBDE CoreOS version "05.65.00.BD" and earlier, and GT1450HS-QMBDE CoreOS version "05.65.00.BD" and earlier) allows a remote unauthenticated attacker to stop the network functions of the products via a specially crafted packet.
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: 0.042 (90.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 90.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.042 · newest: 0.042 · change: 0.000
Affected products
- Mitsubishielectric Coreos
- Mitsubishielectric Gt1450hs-Qmbde
- Mitsubishielectric Gt1450-Qlbde
- Mitsubishielectric Gt1450-Qmbde
- Mitsubishielectric Gt1455hs-Qtbde
- Mitsubishielectric Gt1455-Qtbde
- Mitsubishi Electric Corporation Gt14 Model Of Got 1000 Series — versions (GT1455-QTBDE CoreOS version ’05.65.00.BD’ and earlier, GT1450-QMBDE CoreOS version ’05.65.00.BD’ and earlier, GT1450-QLBDE CoreOS version ’05.65.00.BD’ and earlier, GT1455HS-QTBDE CoreOS version ’05.65.00.BD’ and earlier, and GT1450HS-QMBDE CoreOS version ’05.65.00.BD’ and earlier)
Weakness classification (CWE)
References
- us-cert.cisa.gov/ics/advisories/icsa-20-310-02 (US Government Resource, Third Party Advisory)
- www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-014_en.pdf (Vendor Advisory)
- www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2020-014.pdf (Vendor Advisory)
- jvn.jp/vu/JVNVU99562395/index.html (Third Party Advisory)
Frequently asked questions
- What is CVE-2020-5646?
- CVE-2020-5646 is a high-severity vulnerability in Mitsubishielectric Coreos, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2020-11-06.
- How severe is CVE-2020-5646?
- High severity. CVSS v3 base score is 7.5 out of 10.