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Findings

CVE-2019-15271

Cisco RV Series Routers Deserialization of Untrusted Data Vulnerability

Published Nov 25, 2019 · updated Jun 16, 2026 · cisco rv016 multi-wan vpn firmware

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.

Timeline

Detection, updates, and resolution for this record.

  1. Nov 25, 2019 · Catalog

    Detected

    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

  2. Jun 8, 2022 · CISA KEV

    Known exploited

    Apply updates per vendor instructions.

  3. Jun 22, 2022 · CISA KEV

    Remediation due

    Apply updates per vendor instructions.

  4. Jun 16, 2026 · Catalog

    Updated

    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

Required action

Apply updates per vendor instructions.

CISA due date Jun 22, 2022

Affected

  • cpe cisco/rv016 multi-wan vpn firmwareversion unspecified
  • cpe cisco/rv042 dual wan vpn firmwareversion unspecified
  • cpe cisco/rv042g dual gigabit wan vpn firmwareversion unspecified
  • cpe cisco/rv082 dual wan vpn firmwareversion unspecified
  • vendor Cisco RV Series Routersversion unspecified

Sources

  • CISA KEVCVE-2019-15271

    A deserialization of untrusted data vulnerability in the web-based management interface of certain Cisco Small Business RV Series Routers could allow an attacker to execute code with root privileges.

    cisa.gov
  • CVE.orgCVE-2019-15271

    Official CVE identifier

    cve.org
  • FIRST EPSSCVE-2019-15271

    30-day exploitation probability 5.5%

    first.org
  • NIST NVDCVE-2019-15271

    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. T

    nvd.nist.gov

References