VDB
CVE-2017-6030
CVE-2017-6030
PUBLISHED
CVSS 6.5 MEDIUM
A Predictable Value Range from Previous Values issue was discovered in Schneider Electric Modicon PLCs Modicon M221, firmware versions prior to Version 1.5.0.0, Modicon M241, firmware versions prior to Version 4.0.5.11, and Modicon M251, firmware versions prior to Version 4.0.5.11. The affected products generate insufficiently random TCP initial sequence numbers that may allow an attacker to predict the numbers from previous values. This may allow an attacker to spoof or disrupt TCP connections.
EPSS 0.53% · 67.5th percentile
Risk Scores
CVSS 3.1
6.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
EPSS Score
0.53%
67.5th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| schneider-electric | modicon_m241_firmware | 0 |
| n/a | Schneider Electric Modicon PLCs | Schneider Electric Modicon PLCs |
| schneider-electric | modicon_m221_firmware | 0 |
| schneider-electric | modicon_m251_firmware | 0 |
Exploit Intelligence
- https://ics-cert.us-cert.gov/advisories/ICSA-17-089-02 (circl)
- 97254 (circl)
Timeline
- Feb 17, 2017 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 20, 2021 EPSS Score
- Aug 24, 2021 EPSS Score
- Oct 11, 2021 EPSS Score
- Dec 27, 2021 EPSS Score
- Feb 28, 2022 EPSS Score
- May 2, 2022 EPSS Score
- Jul 3, 2022 EPSS Score
- Sep 5, 2022 EPSS Score
- Nov 6, 2022 EPSS Score