Schneider Electric Modicon TM221CE16R 1.3.3.3 devices allow remote attackers to discover the application-protection password via a \x00\x01\x00\x00\x00\x05\x01\x5a\x00\x03\x00 request to the Modbus port (502/tcp)
Published Apr 6, 2017
9.8
CRITICALCVSS 3.1
EPSS 4.01%
Description
Schneider Electric Modicon TM221CE16R 1.3.3.3 devices allow remote attackers to discover the application-protection password via a \x00\x01\x00\x00\x00\x05\x01\x5a\x00\x03\x00 request to the Modbus port (502/tcp). Subsequently the application may be arbitrarily downloaded, modified, and uploaded.
Affected products
No data.
- 1.3.3.3
Running on/with
- n/a
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AV:N/AC:L/Au:N/C:P/I:N/A:N
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
YesTechnical Impact
TotalDecision
n/aAssessed May 29, 2026 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 4.01% (0.04014) | 90.25th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.98% (0.03981) | 89.12th | v5 (v2026.06.15) |
| Apr 30, 2026 | 1.28% (0.01278) | 79.65th | v4 (v2025.03.14) |
| Mar 17, 2025 | 3.38% (0.03375) | 86.53th | v4 (v2025.03.14) |
| Dec 17, 2024 | 4.88% (0.04883) | 92.67th | v3 (v2023.03.01) |
| Mar 7, 2023 | 11.38% (0.11383) | 94.28th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.14% (0.01136) | 59.45th | v2 (v2022.01.01) |
| Oct 18, 2022 | 1.14% (0.01136) | 58.28th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.14% (0.01136) | 56.27th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.14% (0.01136) | 34.23th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.05% (0.01046) | 28.66th | v1 |
| Jan 6, 2022 | 1.05% (0.01046) | 28.03th | v1 |
| Sep 1, 2021 | 1.05% (0.01046) | 65.02th | v1 |
| Apr 14, 2021 | 1.05% (0.01046) | 0.00th | v1 |
References (3)
- http://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2017-097-02 x_refsource_CONFIRM
- http://www.securityfocus.com/bid/97523 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://os-s.net/advisories/OSS-2017-01.pdf x_refsource_MISCExploitThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2017-097-02 | x_refsource_CONFIRM | |
| http://www.securityfocus.com/bid/97523 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://os-s.net/advisories/OSS-2017-01.pdf | x_refsource_MISCExploitThird Party Advisory |
Change history (0)
No recorded changes yet.