VulnerabilityModified
CVE-2021-30065
On Schneider Electric ConneXium Tofino Firewall TCSEFEA23F3F22 before 03.23, TCSEFEA23F3F20/21, and Belden Tofino Xenon Security Appliance, crafted ModBus packets can bypass the ModBus enforcer.
HIGH 7.5EPSS 0.88%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.88%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
On Schneider Electric ConneXium Tofino Firewall TCSEFEA23F3F22 before 03.23, TCSEFEA23F3F20/21, and Belden Tofino Xenon Security Appliance, crafted ModBus packets can bypass the ModBus enforcer. NOTE: this issue exists because of an incomplete fix of CVE-2017-11401.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- EPSS
- 0.88% probability · 57th percentile
- CISA KEV
- Not listed
- Affected
- belden/tofino xenon security appliance firmware · belden/tofino argon fa-tsa-220-tx\/mm firmware · belden/tofino argon fa-tsa-220-tx\/tx firmware · belden/tofino argon fa-tsa-220-mm\/tx firmware · belden/tofino argon fa-tsa-220-mm\/mm firmware · belden/tofino argon fa-tsa-100-tx\/tx firmware · belden/eagle 20 tofino 943 987-505-mm\/mm firmware · belden/eagle 20 tofino 943 987-504-mm\/tx firmware · belden/eagle 20 tofino 943 987-502 -tx\/mm firmware · belden/eagle 20 tofino 943 987-501-tx\/tx firmware · schneider-electric/tcsefea23f3f20 firmware · schneider-electric/tcsefea23f3f21 firmware · schneider-electric/tcsefea23f3f22 firmware
- Source
- cve@mitre.org
References
- https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2022-011-05Vendor Advisory
- https://www.belden.com/support/security-assuranceVendor Advisory
- https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2022-011-05Vendor Advisory
- https://www.belden.com/support/security-assuranceVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.