CVE-2019-1652 | Cisco Small Business RV320 and RV325 Routers Command Injection Vulnerability

Exp

A vulnerability in the web-based management interface of Cisco Small Business RV320 and RV325 Dual Gigabit WAN VPN Routers could allow an authenticated, remote attacker with administrative privileges on an affected device to execute arbitrary commands. The vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by sending malicious HTTP POST requests to the web-based management interface of an affected device. A successful exploit could allow the attacker to execute arbitrary commands on the underlying Linux shell as root. Cisco has released firmware updates that address this vulnerability.

Published: 2019-01-24 Last update: 2025-10-28 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2019-1652 is rated Critical Active Threat (88.4/100): CVSS High severity, with high exploitation likelihood (EPSS 92.73%, 100th percentile). CISA KEV confirms active exploitation (added 2022-03-03) affecting Cisco / Small Business RV320 and RV325 Dual Gigabit WAN VPN Routers. a weakness (CWE-20) Unauthenticated remote administrative access may be possible. The CISA remediation deadline has passed—treat as an emergency patch priority.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

CISA KEV Record for CVE-2019-1652

Name: Cisco Small Business Routers Improper Input Validation Vulnerability · CISA KEV detail

Exploit added: 2022-03-03

Action due: 2022-03-17

Required action: Apply updates per vendor instructions.

Public exploit references (Exploit-DB) for CVE-2019-1652

EDB-ID Source Kind Published Link
46655 exploit_db edb 2019-04-03 Exploit-DB ↗
46243 exploit_db edb 2019-01-25 Exploit-DB ↗
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Exploit prediction scoring system (EPSS) score for CVE-2019-1652

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-04-22 93.02% 92.73% -0.30%
2 2026-03-04 92.36% 93.02% +0.66%
3 2026-03-01 — 92.36% —

Full EPSS history (34 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2019-1652

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.2 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.2 5.9 [email protected]
7.2 3.0 HIGH
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.2 5.9 [email protected]
9.0 2.0 HIGH
AV:N/AC:L/Au:S/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 8.0 10.0 [email protected]

Weakness enumeration for CVE-2019-1652

Affected software / configurations for CVE-2019-1652

Vendor Product Version Raw CPE
cisco rv320_firmware >= 1.4.2.15, < 1.4.2.22 cpe:2.3:o:cisco:rv320_firmware:*:*:*:*:*:*:*:*
cisco rv325_firmware >= 1.4.2.15, < 1.4.2.22 cpe:2.3:o:cisco:rv325_firmware:*:*:*:*:*:*:*:*

References for CVE-2019-1652

URL Tags
http://packetstormsecurity.com/files/152262/Cisco-RV320-Command-Injection.html Exploit Third Party Advisory VDB Entry
http://packetstormsecurity.com/files/152305/Cisco-RV320-RV325-Unauthenticated-Remote-Code-Execution.html Third Party Advisory VDB Entry
http://seclists.org/fulldisclosure/2019/Mar/61 Exploit Mailing List Third Party Advisory
http://www.securityfocus.com/bid/106728 Third Party Advisory VDB Entry
https://seclists.org/bugtraq/2019/Mar/55 Exploit Mailing List Third Party Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190123-rv-inject Vendor Advisory
https://www.exploit-db.com/exploits/46243/ Exploit Third Party Advisory VDB Entry
https://www.exploit-db.com/exploits/46655/ Exploit Third Party Advisory VDB Entry
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-1652 US Government Resource
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