Vulnerabilities
CVE-2019-1653 — Cisco Small Business RV320 and RV325 Routers Information Disclosure Vulnerability
CVE-2019-1653 · Cisco Small Business RV Series Router Firmware ·…
In brief
- Severity · CVSS
- High7.5CVSS 3.1, High
- EPSS
- 100%
- CISA KEV
- Known exploited, listed since 3 Nov 2021
- CERT-FR
- No advisory or alert referenced in the catalog
- Vendor
- Cisco
- Published · Modified
- ·
- Last verified
Summary
A vulnerability in the web-based management interface of Cisco Small Business RV320 and RV325 Dual Gigabit WAN VPN Routers could allow an unauthenticated, remote attacker to retrieve sensitive information. The vulnerability is due to improper access controls for URLs. An attacker could exploit this vulnerability by connecting to an affected device via HTTP or HTTPS and requesting specific URLs. A successful exploit could allow the attacker to download the router configuration or detailed diagnostic information. Cisco has released firmware updates that address this vulnerability.
Weakness: CWE-284
Title, description and the vendor's statements are quoted from the CVE record; a vendor's advisory is summarised in Patcharo's words, with a link.
Affected and fixed versions
Per product and release branch, as the vendor's CVE record and official advisory state them. A fixed release is shown only when a document names it: the vendor's, or CERT-FR's for Check Point, with its source.
Cisco Small Business RV Series Router Firmware
- —Affected versionsn/aFirst fixed releaseNot published in the sources followed
The vendor states fixes are available; the releases per branch are in its advisory.
Remediation
Fix available
Vendor fix
Cisco has released updates that fix this vulnerability; its advisory lists them.
SourceCisco Security Advisory cisco-sa-20190123-rv-info· revised 4 Apr 2019
Workarounds (vendor)
Cisco states in its advisory that no workaround is available.
Last verified 1 Oct 2026 at 09:30 UTC
Known exploitation
Added to CISA KEV on 3 Nov 2021
Federal remediation due date: 3 May 2022
100% probability of exploitation in the next 30 days (percentile 100%).
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CERT-FR
No CERT-FR advisory or alert of the last two years references this CVE, for the vendors Patcharo covers.
Timeline
- Published by the source
- Added to CISA KEV
- CISA remediation due date
- Source record last modified
- EPSS score computed
- Last verified by Patcharo
Official sources
- Cisco (CVE record)retrieved 1 Oct 2026 at 09:30 UTC
- CISA Known Exploited Vulnerabilitiesretrieved 1 Oct 2026 at 09:28 UTC
- NVDretrieved 27 Sept 2026 at 23:44 UTC
- FIRST EPSSretrieved 27 Sept 2026 at 23:46 UTC
- Cisco Security Advisory cisco-sa-20190123-rv-inforetrieved 1 Oct 2026 at 09:30 UTC
References
- https://www.youtube.com/watch?v=bx0RQJDlGbY
- https://badpackets.net/over-9000-cisco-rv320-rv325-routers-vulnerable-to-cve-2019-1653/
- 20190327 [RT-SA-2019-004] Cisco RV320 Unauthenticated Diagnostic Data Retrieval
- 20190327 [RT-SA-2019-003] Cisco RV320 Unauthenticated Configuration Export
- https://threatpost.com/scans-cisco-routers-code-execution/141218/
Vendor advisory
Known exploited
Cisco · CISA Known Exploited Vulnerabilities · NVD · FIRST EPSS · Cisco Security Advisory cisco-sa-20190123-rv-info
How Patcharo reads this
Affected and fixed releases come from the vendor's structured statements and are matched against exact versions; CVSS from NVD, exploitation from CISA KEV and the vendor's own advisory, probability from FIRST EPSS. Missing data stays Unknown and never becomes Not affected.
Read the methodologyRead the guide: Cisco Secure Firewall release trains: Threat Defense, Management Center and ASA versions explained