CVE-2020-3293

Cisco Small Business RV Series Routers Stack Overflow Arbitrary Code Execution Vulnerabilities

HIGH
7.2
CVSS Score
Published: June 18, 2020 at 02:16 AM UTC
Updated: June 17, 2026 at 03:17 AM UTC
13 products affected across 1 vendorRV325 FirmwareRV320 FirmwareRV042G Firmware

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Severity
HIGH7.2
Exploit prediction
EPSS 3%
SSVC
No known exploit

Description

Multiple vulnerabilities in the web-based management interface of Cisco Small Business RV320 and RV325 Series Routers and Cisco Small Business RV016, RV042, and RV082 Routers could allow an authenticated, remote attacker with administrative privileges to execute arbitrary code on an affected device. The vulnerabilities are due to insufficient boundary restrictions on user-supplied input to scripts in the web-based management interface. An attacker with administrative privileges that are sufficient to log in to the web-based management interface could exploit each vulnerability by sending crafted requests that contain overly large values to an affected device, causing a stack overflow. A successful exploit could allow the attacker to cause the device to crash or allow the attacker to execute arbitrary code with root privileges on the underlying operating system.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≤ 4.2.3.10
cisco-rv016 (same device)
v ≤ 4.2.3.10
cisco-rv042 (same device)
v ≤ 4.2.3.10
cisco-rv042g (same device)
v ≤ 4.2.3.10
cisco-rv082 (same device)
v ≤ 1.5.1.05
cisco-rv320 (same device)
v ≤ 1.5.1.05
cisco-rv325 (same device)
80%
All versions
80%
All versions
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-119CWE-787

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