01 Record
CVE-2017-7898
An Improper Restriction of Excessive Authentication Attempts issue was discovered in Rockwell Automation Allen-Bradley MicroLogix 1100 programmable-logic controllers 1763-L16AWA, Series A and B,
CriticalPUBLISHEDCNA: icscert
CNA base score9.8 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
02 Description
An Improper Restriction of Excessive Authentication Attempts issue was discovered in Rockwell Automation Allen-Bradley MicroLogix 1100 programmable-logic controllers 1763-L16AWA, Series A and B,
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
- Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
- EPSS probability
- 5.15% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 92.0% of scored records. A rank, not a probability.
- NVD base score
- 9.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2017-06-30 02:35Z9 YR AGO
- Last updated
- 2026-06-03 13:20Z4 MO AGO
- Reserved
- 2017-04-18
- Assigning CNA
- icscert
- Record state
- PUBLISHED
- Severity
- Critical (CVSS 9.8)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-307Improper Restriction of Excessive Authentication AttemptsBase
- Data version
- 5.2
- Document digest
- bb801e4cc4edffef59bc9aa42fe259239f862ce7286c1886f366643f39f80074
05 Affected products
VendorProductVersionsPlatforms
n/aRockwell Automation Allen-Bradley MicroLogix 1100 and 1400Rockwell Automation Allen-Bradley MicroLogix 1100 and 1400—
06 References
- www.securitytracker.com1038546http://www.securitytracker.com/id/1038546
- ics-cert.us-cert.govhttps://ics-cert.us-cert.gov/advisories/ICSA-17-115-04