Out-of-bounds Read in Mitsubishielectric Ezsocket
CVE-2021-20606
Out-of-bounds Read vulnerability in Mitsubishi Electric GX Works2 versions 1.606G and prior, Mitsubishi Electric MELSOFT Navigator versions 2.84N and prior and Mitsubishi Electric EZSocket versions 5.4 and prior allows an attacker to cause a DoS condition in the software by getting a user to open malicious project file specially crafted by an attacker.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.010 (62.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 62nd percentile — 62.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.010 · change: +0.001
Affected products
- Mitsubishielectric Ezsocket
- Mitsubishielectric Gx Works2
- Mitsubishielectric Melsoft Navigator
- Mitsubishi Electric Gx Works2; Melsoft Navigator; Ezsocket — versions Mitsubishi Electric GX Works2 versions 1.606G and prior, Mitsubishi Electric MELSOFT Navigator versions 2.84N and prior, Mitsubishi Electric EZSocket versions 5.4 and prior
Weakness classification (CWE)
References
- www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-021_en.pdf (Patch, Vendor Advisory)
- jvn.jp/vu/JVNVU93817405/index.html (Patch, Third Party Advisory)
- us-cert.cisa.gov/ics/advisories/icsa-21-350-05 (US Government Resource, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-20606?
- CVE-2021-20606 is a medium-severity vulnerability in Mitsubishielectric Ezsocket, classified under Out-of-bounds Read. CVSS score: 5.5/10. Published 2021-12-17.
- How severe is CVE-2021-20606?
- Medium severity. CVSS v3 base score is 5.5 out of 10.