High severity7.5NVD Advisory· Published Dec 17, 2021· Updated Jun 17, 2026
CVE-2021-20608
CVE-2021-20608
Description
Improper Handling of Length Parameter Inconsistency vulnerability in Mitsubishi Electric GX Works2 versions 1.606G and prior allows a remote unauthenticated attacker to cause a DoS condition in GX Works2 by getting GX Works2 to read a tampered program file from a Mitsubishi Electric PLC by sending malicious crafted packets to tamper with the program file.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3cpe:2.3:a:mitsubishielectric:gx_works2:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:mitsubishielectric:gx_works2:*:*:*:*:*:*:*:*range: <=1.606g
- (no CPE)range: <=1.606G
- Mitsubishi Electric/GX Works2description
Patches
Vulnerability mechanics
References
3- jvn.jp/vu/JVNVU93019896/index.htmlnvdThird Party Advisory
- us-cert.cisa.gov/ics/advisories/icsa-21-350-04nvdThird Party AdvisoryUS Government Resource
- www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-020_en.pdfnvdVendor Advisory
News mentions
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