CVE-2021-1297

Cisco Small Business RV160, RV160W, RV260, RV260P, and RV260W VPN Routers Arbitrary File Write Vulnerabilities

HIGH
7.5
CVSS Score
Published: February 4, 2021 at 04:56 PM UTC
Updated: June 17, 2026 at 03:31 AM UTC
11 products affected across 1 vendorRV260 VPN Router FirmwareRV160W Wireless Ac VPN Router FirmwareRV160 VPN Router Firmware

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Severity
HIGH7.5
Exploit prediction
EPSS 4%
SSVC
No known exploit

Description

Multiple vulnerabilities in the web-based management interface of Cisco Small Business RV160, RV160W, RV260, RV260P, and RV260W VPN Routers could allow an unauthenticated, remote attacker to conduct directory traversal attacks and overwrite certain files that should be restricted on an affected system. These vulnerabilities are due to insufficient input validation. An attacker could exploit these vulnerabilities by using the web-based management interface to upload a file to location on an affected device that they should not have access to. A successful exploit could allow the attacker to overwrite files on the file system of the affected device.

Affected

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

v < 1.0.01.02
Affected range stops below 1.0.01.02, so it looks safe — our inference, not a vendor statement
cisco-rv160-vpn-router (same device)
v < 1.0.01.02
Affected range stops below 1.0.01.02, so it looks safe — our inference, not a vendor statement
cisco-rv160w-wireless-ac-vpn-router (same device)
v < 1.0.01.02
Affected range stops below 1.0.01.02, so it looks safe — our inference, not a vendor statement
cisco-rv260-vpn-router (same device)
v < 1.0.01.02
Affected range stops below 1.0.01.02, so it looks safe — our inference, not a vendor statement
cisco-rv260p-vpn-router-with-poe (same device)
v < 1.0.01.02
Affected range stops below 1.0.01.02, so it looks safe — our inference, not a vendor statement
cisco-rv260w-wireless-ac-vpn-router (same device)
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 exploitAutomatablePartial impact

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

CVSS

7.5HIGHcisco
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-36CWE-22

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