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High 8.8Known exploited (CISA KEV)Published Nov 26, 2019

CVE-2019-15271Cisco Small Business RV016, RV042, RV042G, and RV082 Routers Arbitrary Command Execution Vulnerability

Updated under an hour ago ()

Does this affect you?

It affects Cisco Small Business RV Series Router Firmware and 4 other products. Add what you run to find out whether that includes you.

CISA lists it as known exploited since Jun 8, 2022; federal agencies had to remediate by Jun 22, 2022. Treat that date as your deadline.

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.

CVSS
8.8 HIGH (v3.0, CNA)CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-502
Known exploited
Added to CISA KEV Jun 8, 2022; federal remediation due Jun 22, 2022Apply updates per vendor instructions.
EPSS (exploitation in the next 30 days)
5.49% (percentile 93)
Assigned by
cisco
NVD analysis
Analyzed
Record last updated
Oct 21, 2025
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Cisco Cisco Small Business RV Series Router Firmware
cisco:small_business_rv_series_router_firmware (from the name)
from unspecified before n/a
CNA record
cisco rv016_multi-wan_vpn_firmware
cisco:rv016_multi-wan_vpn_firmware
before 4.2.3.10
NVD
cisco rv042_dual_wan_vpn_firmware
cisco:rv042_dual_wan_vpn_firmware
before 4.2.3.10
NVD
cisco rv042g_dual_gigabit_wan_vpn_firmware
cisco:rv042g_dual_gigabit_wan_vpn_firmware
before 4.2.3.10
NVD
cisco rv082_dual_wan_vpn_firmware
cisco:rv082_dual_wan_vpn_firmware
before 4.2.3.10
NVD

References

  • vendor-advisory, x-refsource-cisco
  • us-government-resource

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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