Improper neutralization of argument delimiters in a command ('Argument Injection') vulnerability in TCP/IP function included in the firmwar…

published 2020-11-06 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-26809

cvss: 9.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 3.5%; EPSS 3.5% chance of exploitation in 30 days, percentile 89%
public exploits: 0; none known

Improper neutralization of argument delimiters in a command ('Argument Injection') 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 unauthenticated attackers on adjacent network to stop the network functions of the products via a specially crafted packet.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-20-310-02 updated 2020-11-05 cvss 7.1

Mitsubishi Electric GT14 Model of GOT1000 Series

Mitsubishi Electric GT1450-QLBDE Mitsubishi Electric GT1450-QMBDE Mitsubishi Electric GT1450HS-QMBDE Mitsubishi Electric GT1455-QTBDE Mitsubishi Electric GT1455HS-QTBDE
affected: mitigation mitsubishielectric.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Exploit prediction

3.47% chance of exploitation in the next 30 days, higher than 89% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	6.5	AV:N/AC:L/Au:S/C:P/I:P/A:P

Affected products

Mitsubishi Electric Corporation GT14 Model of GOT 1000 series

Classification

Weakness

CWE-88 Improper Neutralization of Argument Delimiters in a Command

References

mitsubishielectric.com /en/psirt/vulnerability/pdf/2020-014_en.pdf
vendor-advisory
mitsubishielectric.co.jp /psirt/vulnerability/pdf/2020-014.pdf
vendor-advisory
us-cert.cisa.gov /ics/advisories/icsa-20-310-02
third-party-advisory, us-government-resource
jvn.jp /vu/JVNVU99562395/index.html
third-party-advisory

Sources

CVE List CVE-2020-5648
NVD CVE-2020-5648

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary