CVE-2021-20610 is a denial-of-service vulnerability affecting various Mitsubishi Electric MELSEC iQ-R, MELSEC Q, MELSEC L, and MELIPC series products. A remote, unauthenticated attacker can exploit this by sending specially crafted packets, leading to a system reset. With a CVSS score of 7.5 (High), this vulnerability requires no user interaction or privileges, making it easily exploitable over the network. There is currently no public exploit code available (Metasploit, Nuclei, ExploitDB), nor is there evidence of active exploitation or significant community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 24CPE matchmatch criteria | cpe:2.3:o:mitsubishi:melsec_iq-r_r00_cpu_firmware:*:*:*:*:*:*:*:* | ||
<= 24CPE matchmatch criteria | cpe:2.3:o:mitsubishi:melsec_iq-r_r01_cpu_firmware:*:*:*:*:*:*:*:* | ||
<= 24CPE matchmatch criteria | cpe:2.3:o:mitsubishi:melsec_iq-r_r02_cpu_firmware:*:*:*:*:*:*:*:* | ||
<= 57CPE matchmatch criteria | cpe:2.3:o:mitsubishi:melsec_iq-r_r04_cpu_firmware:*:*:*:*:*:*:*:* | ||
<= 57CPE matchmatch criteria | cpe:2.3:o:mitsubishi:melsec_iq-r_r08_cpu_firmware:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.