Weak password recovery in Modicon Managed Switch MCSESM* and MCSESP* V8.21 and prior
Priority MEDIUM 45CWE-640Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-640.
Summary
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.
Why it matters now
EPSS 0.014 72nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | Modicon Managed Switch MCSESM* and MCSESP* V8.21 and prior | all versions | — | No fix listed | CNA |
- Modicon Managed Switch MCSESM* and MCSESP* V8.21 and prior Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 32
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:schneider-electric:mcsesp083f23g0_firmware:*:*:*:*:*:*:*:* | before 8.22 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:mcsesp083f23g0:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:mcsesp083f23g0t_firmware:*:*:*:*:*:*:*:* | before 8.22 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:mcsesp083f23g0t:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:mcsesm043f23f0_firmware:*:*:*:*:*:*:*:* | before 8.22 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:mcsesm043f23f0:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:mcsesm053f1cu0_firmware:*:*:*:*:*:*:*:* | before 8.22 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:mcsesm053f1cu0:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:mcsesm063f2cu0_firmware:*:*:*:*:*:*:*:* | before 8.22 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:mcsesm063f2cu0:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
- cpe:2.3:o:schneider-electric:mcsesp083f23g0_firmware:*:*:*:*:*:*:*:* Versions before 8.22 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:mcsesp083f23g0:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:mcsesp083f23g0t_firmware:*:*:*:*:*:*:*:* Versions before 8.22 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:mcsesp083f23g0t:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:mcsesm043f23f0_firmware:*:*:*:*:*:*:*:* Versions before 8.22 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:mcsesm043f23f0:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:mcsesm053f1cu0_firmware:*:*:*:*:*:*:*:* Versions before 8.22 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:mcsesm053f1cu0:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:mcsesm063f2cu0_firmware:*:*:*:*:*:*:*:* Versions before 8.22 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:mcsesm063f2cu0:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
Show 22 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:schneider-electric:mcsesm053f1cs0_firmware:*:*:*:*:*:*:*:* | before 8.22 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:mcsesm053f1cs0:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:mcsesm063f2cs0_firmware:*:*:*:*:*:*:*:* | before 8.22 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:mcsesm063f2cs0:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:mcsesm083f23f0_firmware:*:*:*:*:*:*:*:* | before 8.22 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:mcsesm083f23f0:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:mcsesm103f2cu0_firmware:*:*:*:*:*:*:*:* | before 8.22 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:mcsesm103f2cu0:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:mcsesm083f23f0h_firmware:*:*:*:*:*:*:*:* | before 8.22 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:mcsesm083f23f0h:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:mcsesm103f2cu0h_firmware:*:*:*:*:*:*:*:* | before 8.22 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:mcsesm103f2cu0h:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:mcsesm103f2cs0h_firmware:*:*:*:*:*:*:*:* | before 8.22 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:mcsesm103f2cs0h:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:mcsesm123f2lg0_firmware:*:*:*:*:*:*:*:* | before 8.22 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:mcsesm123f2lg0:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:mcsesm093f1cu0_firmware:*:*:*:*:*:*:*:* | before 8.22 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:mcsesm093f1cu0:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:mcsesm093f1cs0_firmware:*:*:*:*:*:*:*:* | before 8.22 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:mcsesm093f1cs0:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:mcsesm103f2cs0_firmware:*:*:*:*:*:*:*:* | before 8.22 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:mcsesm103f2cs0:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
- cpe:2.3:o:schneider-electric:mcsesm053f1cs0_firmware:*:*:*:*:*:*:*:* Versions before 8.22 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:mcsesm053f1cs0:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:mcsesm063f2cs0_firmware:*:*:*:*:*:*:*:* Versions before 8.22 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:mcsesm063f2cs0:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:mcsesm083f23f0_firmware:*:*:*:*:*:*:*:* Versions before 8.22 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:mcsesm083f23f0:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:mcsesm103f2cu0_firmware:*:*:*:*:*:*:*:* Versions before 8.22 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:mcsesm103f2cu0:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:mcsesm083f23f0h_firmware:*:*:*:*:*:*:*:* Versions before 8.22 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:mcsesm083f23f0h:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:mcsesm103f2cu0h_firmware:*:*:*:*:*:*:*:* Versions before 8.22 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:mcsesm103f2cu0h:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:mcsesm103f2cs0h_firmware:*:*:*:*:*:*:*:* Versions before 8.22 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:mcsesm103f2cs0h:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:mcsesm123f2lg0_firmware:*:*:*:*:*:*:*:* Versions before 8.22 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:mcsesm123f2lg0:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:mcsesm093f1cu0_firmware:*:*:*:*:*:*:*:* Versions before 8.22 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:mcsesm093f1cu0:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:mcsesm093f1cs0_firmware:*:*:*:*:*:*:*:* Versions before 8.22 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:mcsesm093f1cs0:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:mcsesm103f2cs0_firmware:*:*:*:*:*:*:*:* Versions before 8.22 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:mcsesm103f2cs0:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-22731
- 2026-10-03 Alias added: GHSA-6q5v-82v5-mpf9
Sources
- CVE-2021-22731 · CVE Program
- CVE-2021-22731 · NVD
- FIRST EPSS
- GHSA-6q5v-82v5-mpf9 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences