CVE-2020-5644
9.8
CRITICAL · CVSS 3.1 · EPSS 4.5% (pctl 91)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
Description
Buffer overflow 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 or execute a malicious program via a specially crafted packet.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 4.54% — more likely to be exploited than 91% of all CVEs |
| Weakness | CWE-120 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2020-11-06 |
| Last modified | 2026-06-17 |
Affected (6)
| Vendor | Product |
|---|---|
| mitsubishielectric | coreos |
| mitsubishielectric | gt1450-qlbde |
| mitsubishielectric | gt1450-qmbde |
| mitsubishielectric | gt1450hs-qmbde |
| mitsubishielectric | gt1455-qtbde |
| mitsubishielectric | gt1455hs-qtbde |
References
- https://jvn.jp/vu/JVNVU99562395/index.html
- https://us-cert.cisa.gov/ics/advisories/icsa-20-310-02
- https://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2020-014.pdf
- https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-014_en.pdf
- https://jvn.jp/vu/JVNVU99562395/index.html
- https://us-cert.cisa.gov/ics/advisories/icsa-20-310-02
- https://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2020-014.pdf
- https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-014_en.pdf
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