CASCACascade Atlas

Evidence dossier

CVE-2019-15271

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

66.9–82.4Priority evidence range
As known Jul 19, 2026, 5:00 AM UTCgen-56ccdaf9

Normalized restatement

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.

State
PUBLISHED
Published
Nov 26, 2019
Updated
Oct 21, 2025
Evidence coverage
85%
CISA KEVCatalog member

Apply updates per vendor instructions.

FIRST EPSS5.98%

2026-07-18 · v2026.06.15 · percentile 92.5%

Source stateNo scored conflict

Distinct CVSS assessments remain side by side; none are averaged.

Source comparison

Who said what

CISA-ADPindependent enrichment
container

CISA ADP Vulnrichment

ciscooriginal assertion
container

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

CVEderivative copy
container

CVE Program Container

CISA KEVoriginal assertion
observed_exploitation

Cisco RV Series Routers Deserialization of Untrusted Data Vulnerability

FIRST EPSSoriginal assertion
model_probability

Probability 0.059790000000; percentile 0.924870000000

Applicability

Cited product scope

Trace impact →
CiscoCisco Small Business RV Series Router Firmware
[{"status": "affected", "version": "unspecified", "lessThan": "n/a", "versionType": "custom"}]unknown
Unknown vendorUnknown product
cpe:2.3:h:cisco:rv016_multi-wan_vpn:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:cisco:rv042_dual_wan_vpn:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:cisco:rv042g_dual_gigabit_wan_vpn:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:cisco:rv082_dual_wan_vpn:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:o:cisco:rv016_multi-wan_vpn_firmware:*:*:*:*:*:*:*:*; end excluding 4.2.3.10supported
Unknown vendorUnknown product
cpe:2.3:o:cisco:rv042_dual_wan_vpn_firmware:*:*:*:*:*:*:*:*; end excluding 4.2.3.10supported
Unknown vendorUnknown product
cpe:2.3:o:cisco:rv042g_dual_gigabit_wan_vpn_firmware:*:*:*:*:*:*:*:*; end excluding 4.2.3.10supported
Unknown vendorUnknown product
cpe:2.3:o:cisco:rv082_dual_wan_vpn_firmware:*:*:*:*:*:*:*:*; end excluding 4.2.3.10supported

Assessments

CVSS by origin

8.8
nvd@nist.govCVSS 3.1 · role PrimaryCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
9.0
nvd@nist.govCVSS 2.0 · role PrimaryAV:N/AC:L/Au:S/C:C/I:C/A:C
8.8
psirt@cisco.comCVSS 3.0 · role SecondaryCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8
ciscoCVSS 3.0 · role unknownCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Limitations and unknowns

  • KEV membership is authoritative for the catalog, not proof of exposure in any environment.
  • EPSS is a dated model probability and not an individual-environment prediction.
  • Affected or fixed status applies only to the exact cited product and version scope; unresolved scope remains unknown.
  • NVD-carried upstream facts remain derivative and are not independent corroboration.
  • Only NVD metrics validated under the generation-bound calculator are Public Priority eligible; direct CVE record metrics remain display-only.
  • NVD CVSS source eligibility is closed: NVD-authored, exact record-source, or registered same-CVE container origin; unmapped sources remain display-only.
  • Factor D is unknown in Public Core because no accepted canonical mapping-obligation ledger is present.
  • Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.