Cisco RV Series Routers Deserialization of Untrusted Data Vulnerability

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

• 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

How to fix CVE-2019-15271

• Recommended remediation

  Apply updates per vendor instructions. CISA due date Jun 22, 2022.

• Official advisories

  • CISA KEV · cisa.gov
  • CVE.org · cve.org
  • FIRST EPSS · first.org
  • NIST NVD · nvd.nist.gov
  • VulnCheck KEV · vulncheck.com

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Technology hubs

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

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

Sources

• CISA KEVConfirmed exploitationCVE-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.orgVulnerability recordCVE-2019-15271

  Official CVE identifier

  cve.org
• FIRST EPSSExploitation probabilityCVE-2019-15271

  30-day exploitation probability 5.5%

  first.org
• NIST NVDVulnerability recordCVE-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
• VulnCheck KEVConfirmed exploitationCVE-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.

  vulncheck.com

References

• VulnCheck exploitation evidence · cisa.gov
• CISA note · nvd.nist.gov
• Vendor Advisory · tools.cisco.com
• US Government Resource · cisa.gov
• VulnCheck exploitation evidence · cisa.gov
• VulnCheck exploitation evidence · cisa.gov

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.