A Predictable Value Range from Previous Values issue was discovered in Rockwell Automation Allen-Bradley MicroLogix 1100 programmable-logic controllers 1763-L16AWA, Series A and B, Version 16.00 and prior versions; 1763-L16BBB, Series A and B, Version 16.00 and prior versions; 1763-L16BWA, Series A and B, Version 16.00 and prior versions; and 1763-L16DWD, Series A and B, Version 16.00 and prior versions and Allen-Bradley MicroLogix 1400 programmable logic controllers 1766-L32AWA, Series A and B, Version 16.00 and prior versions; 1766-L32BWA, Series A and B, Version 16.00 and prior versions; 1766-L32BWAA, Series A and B, Version 16.00 and prior versions; 1766-L32BXB, Series A and B, Version 16.00 and prior versions; 1766-L32BXBA, Series A and B, Version 16.00 and prior versions; and 1766-L32AWAA, Series A and B, Version 16.00 and prior versions. Insufficiently random TCP initial sequence numbers are generated, which may allow an attacker to predict the numbers from previous values. This may allow an attacker to spoof or disrupt TCP connections, resulting in a denial of service for the target device.
結論預警: CVE-2017-7901 綜合評估為高風險(71.9/100):CVSS 技術影響為高級,利用機率偏高(EPSS 6.62%,百分位 93%) 核心證據: EPSS 顯示該漏洞近期被利用的可能性處於高位。 近一日 EPSS 上升 +6.54%,被利用關注度持續升高。 強制指令: 被利用機率偏高—請盤點暴露面並優先安排修補。
風險隨態勢動態變化;本站持續評估並同步更新本頁展示內容。
EPSS 日更估計相對被利用可能性;百分位表示該 CVE 在已評分漏洞中的相對排名(越高表示相對更嚴重)。
| # | 日期 | 舊 EPSS 分數 | 新 EPSS 分數 | 變化(新 − 舊) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.08% | 6.62% | +6.54% |
| 2 | 2025-03-30 | 0.04% | 0.08% | +0.03% |
| 3 | 2025-03-29 | — | 0.04% | — |
完整 EPSS 歷史 (共 7 筆)
該 CVE 的 CVSS 指標。
| 底座分 | 版本 | 嚴重度 | 向量 | 可利用性 | 影響 | 分數來源 |
|---|---|---|---|---|---|---|
| 8.6 | 3.0 | HIGH |
|
3.9 | 4.7 | [email protected] |
| 9.0 | 2.0 | HIGH |
|
10.0 | 8.5 | [email protected] |
| 廠商 | 產品 | 版本 | 原始 CPE |
|---|---|---|---|
| rockwellautomation | 1763-l16awa_series_a | <= 16.000 | cpe:2.3:a:rockwellautomation:1763-l16awa_series_a:*:*:*:*:*:*:*:* |
| rockwellautomation | 1763-l16awa_series_b | <= 16.000 | cpe:2.3:a:rockwellautomation:1763-l16awa_series_b:*:*:*:*:*:*:*:* |
| rockwellautomation | 1763-l16bbb_series_a | <= 16.000 | cpe:2.3:a:rockwellautomation:1763-l16bbb_series_a:*:*:*:*:*:*:*:* |
| rockwellautomation | 1763-l16bbb_series_b | <= 16.000 | cpe:2.3:a:rockwellautomation:1763-l16bbb_series_b:*:*:*:*:*:*:*:* |
| rockwellautomation | 1763-l16bwa_series_a | <= 16.000 | cpe:2.3:a:rockwellautomation:1763-l16bwa_series_a:*:*:*:*:*:*:*:* |
| rockwellautomation | 1763-l16bwa_series_b | <= 16.000 | cpe:2.3:a:rockwellautomation:1763-l16bwa_series_b:*:*:*:*:*:*:*:* |
| rockwellautomation | 1763-l16dwd_series_a | <= 16.000 | cpe:2.3:a:rockwellautomation:1763-l16dwd_series_a:*:*:*:*:*:*:*:* |
| rockwellautomation | 1763-l16dwd_series_b | <= 16.000 | cpe:2.3:a:rockwellautomation:1763-l16dwd_series_b:*:*:*:*:*:*:*:* |
| rockwellautomation | 1766-l32awa_series_a | <= 16.000 | cpe:2.3:a:rockwellautomation:1766-l32awa_series_a:*:*:*:*:*:*:*:* |
| rockwellautomation | 1766-l32awa_series_b | <= 16.000 | cpe:2.3:a:rockwellautomation:1766-l32awa_series_b:*:*:*:*:*:*:*:* |
| rockwellautomation | 1766-l32awaa_series_a | <= 16.000 | cpe:2.3:a:rockwellautomation:1766-l32awaa_series_a:*:*:*:*:*:*:*:* |
| rockwellautomation | 1766-l32awaa_series_b | <= 16.000 | cpe:2.3:a:rockwellautomation:1766-l32awaa_series_b:*:*:*:*:*:*:*:* |
| rockwellautomation | 1766-l32bwa_series_a | <= 16.000 | cpe:2.3:a:rockwellautomation:1766-l32bwa_series_a:*:*:*:*:*:*:*:* |
| rockwellautomation | 1766-l32bwa_series_b | <= 16.000 | cpe:2.3:a:rockwellautomation:1766-l32bwa_series_b:*:*:*:*:*:*:*:* |
| rockwellautomation | 1766-l32bwaa_series_a | <= 16.000 | cpe:2.3:a:rockwellautomation:1766-l32bwaa_series_a:*:*:*:*:*:*:*:* |
| rockwellautomation | 1766-l32bwaa_series_b | <= 16.000 | cpe:2.3:a:rockwellautomation:1766-l32bwaa_series_b:*:*:*:*:*:*:*:* |
| rockwellautomation | 1766-l32bxb_series_a | <= 16.000 | cpe:2.3:a:rockwellautomation:1766-l32bxb_series_a:*:*:*:*:*:*:*:* |
| rockwellautomation | 1766-l32bxb_series_b | <= 16.000 | cpe:2.3:a:rockwellautomation:1766-l32bxb_series_b:*:*:*:*:*:*:*:* |
| rockwellautomation | 1766-l32bxba_series_a | <= 16.000 | cpe:2.3:a:rockwellautomation:1766-l32bxba_series_a:*:*:*:*:*:*:*:* |
| rockwellautomation | 1766-l32bxba_series_b | <= 16.000 | cpe:2.3:a:rockwellautomation:1766-l32bxba_series_b:*:*:*:*:*:*:*:* |
| URL | 標籤 |
|---|---|
| http://www.securitytracker.com/id/1038546 | |
| https://ics-cert.us-cert.gov/advisories/ICSA-17-115-04 | Patch Third Party Advisory US Government Resource |