CVE-2021-22731
high-risk
Published 2021-05-26
Weak Password Recovery Mechanism for Forgotten Password vulnerability exists on Modicon Managed Switch MCSESM* and MCSESP* V8.21 and prior which could cause an unauthorized password change through HTTP / HTTPS when basic user information is known by a remote attacker.
Do I need to act?
~
2.1% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10
Critical
NETWORK
/ LOW complexity
Affected Products (16)
Mcsesp083F23G0 Firmware
Mcsesp083F23G0T Firmware
Mcsesm043F23F0 Firmware
Mcsesm053F1Cu0 Firmware
Mcsesm063F2Cu0 Firmware
Mcsesm053F1Cs0 Firmware
Mcsesm063F2Cs0 Firmware
Mcsesm083F23F0 Firmware
Mcsesm103F2Cu0 Firmware
Mcsesm083F23F0H Firmware
Mcsesm103F2Cu0H Firmware
Mcsesm103F2Cs0H Firmware
Mcsesm123F2Lg0 Firmware
Mcsesm093F1Cu0 Firmware
Mcsesm093F1Cs0 Firmware
Mcsesm103F2Cs0 Firmware
Affected Vendors
55
/ 100
high-risk
Severity
32/34 · Critical
Exploitability
5/34 · Minimal
Exposure
18/34 · Moderate