Exploited CVEs / Cisco / CVE-2019-1653
CVE-2019-1653
Cisco Small Business RV320 and RV325 Routers Information Disclosure Vulnerability. Exploitation in the wild is confirmed by CISA, not predicted. Federal agencies were required to remediate by 2022-05-03 (that deadline has passed); treat that date as the outer bound for your own environment. The fix is in the vendor advisory: Cisco Security Advisories (PSIRT), linked below.
Actively exploited Cisco Small Business RV320 and RV325 Routers vulnerability, High severity, CVSS 7.5. Added to the CISA KEV catalog 2021-11-03.
Risk summary
Updated July 27, 2026. Data refreshed on every build from MSRC, CISA KEV, and FIRST EPSS.
Senserva AI Opinion for CVE-2019-1653
With no authentication at all, an attacker can pull the full device configuration, including credentials, from Cisco RV320 and RV325 VPN routers over the web interface, and EPSS scores it at the maximum 100%. Harvested configs feed directly into CVE-2019-1652 for authenticated command execution, a chain that was mass-exploited within days of disclosure. Small business VPN edges running this High Severity pair should be presumed harvested.
Do this: Update RV320 and RV325 firmware, change every credential that ever lived in the router config, and disable remote web management.
AI-generated from public data, 2026-07-07. Verify against the vendor advisory before acting.
Senserva AI Opinion and rich prompt for CVE-2019-1653
Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.
Full tracking and change history for CVE-2019-1653
Published and last-revised dates are authoritative, from Microsoft MSRC (or the CISA KEV date-added). Senserva additionally records day-to-day changes from 2026-07-07, refreshed several times a day; the change count reflects that forward-only tracking.
CISA required action
Federal (BOD 22-01) remediation due date: 2022-05-03 (past due).
Apply updates per vendor instructions.
Official fix for CVE-2019-1653
The authoritative fix and affected-version list are published by the vendor. Find the Small Business RV320 and RV325 Routers advisory on Cisco Security Advisories (PSIRT).
Common questions about CVE-2019-1653
Is CVE-2019-1653 actively exploited?
Yes. CVE-2019-1653 was added to the CISA Known Exploited Vulnerabilities (KEV) catalog on 2021-11-03, which means exploitation in the wild has been confirmed, not predicted. Its EPSS 30-day exploitation probability is 100%.
What is the CISA deadline and required action for CVE-2019-1653?
CISA set the federal (BOD 22-01) remediation due date at 2022-05-03, which has passed; treat any unremediated system as overdue. The verbatim required action: Apply updates per vendor instructions.
What fixes CVE-2019-1653?
The authoritative fix is in the vendor advisory: see Cisco Security Advisories (PSIRT) for the patched Small Business RV320 and RV325 Routers versions and any workarounds. KEV listing makes this a fix-first item: patch it ahead of higher-CVSS issues nobody is exploiting.
Can I ask my own AI about CVE-2019-1653?
Yes. This page includes a free, ready-to-paste AI prompt containing CVE-2019-1653's key facts: severity, CVSS, EPSS, the KEV date, the CISA due date, and the required action. Copy it into Claude, ChatGPT, or Copilot; the data is refreshed twice a day (5 AM and 3 PM US Central).
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