CVE-2019-15271

Cisco Small Business RV016, RV042, RV042G, and RV082 Routers Arbitrary Command Execution Vulnerability

  • High 8.8
  • Exploited: added to CISA KEV 8 Jun 2022

Description

A vulnerability in the web-based management interface of certain Cisco Small Business RV Series Routers could allow an authenticated, remote attacker to execute arbitrary commands with root privileges. The attacker must have either a valid credential or an active session token. The vulnerability is due to lack of input validation of the HTTP payload. An attacker could exploit this vulnerability by sending a malicious HTTP request to the web-based management interface of the targeted device. A successful exploit could allow the attacker to execute commands with root privileges.

Key facts

Published
26 Nov 2019
Last changed
21 Oct 2025
Assigned by
cisco
KEV added
8 Jun 2022
KEV fix due
22 Jun 2022
EPSS
5.488% likely to be exploited in the next 30 days, higher than 92.903% of CVEs (scores for 15 Nov 2026)
SSVC (CISA)
Exploitation: active; Automatable: no; Technical impact: total

Severity scores

Each score is shown as its source gave it. They are not averaged or merged.

  • 8.8CVSS 3.0, Highfrom the CNA (cisco)CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

What to do

  • Apply updates per vendor instructions.CISA KEV required action

Historical context and remediation

This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.

No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.

Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.

Read the original CVE record.

Affected products

VendorProductVersions
CiscoCisco Small Business RV Series Router Firmware
  • unspecified up to but excluding n/a (affected)

Timeline

  1. 26 Nov 2019 Published
  2. 8 Jun 2022 CVE-2019-15271 added to CISA KEV
  3. 8 Jun 2022 Added to the CISA KEV catalogue

Weakness

References