What is CVE-2019-1862?

CVE-2019-1862 is a high-severity vulnerability in Cisco iOS Xe Software, classified under Improper Input Validation. CVSS score: 7.2/10. Published 2019-05-13.

How severe is CVE-2019-1862?

High severity. CVSS v3 base score is 7.2 out of 10.

Is CVE-2019-1862 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Improper input validation in Cisco iOS Xe Software

CVE-2019-1862

A vulnerability in the web-based user interface (Web UI) of Cisco IOS XE Software could allow an authenticated, remote attacker to execute commands on the underlying Linux shell of an affected device with root privileges. The vulnerability occurs because the affected software improperly sanitizes user-supplied input. An attacker who has valid administrator access to an affected device could exploit this vulnerability by supplying a crafted input parameter on a form in the Web UI and then submitting that form. A successful exploit could allow the attacker to run arbitrary commands on the device with root privileges, which may lead to complete system compromise.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2019-05-13 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.054 (92.5th percentile), scored 2026-10-07.

Low probability of exploitation in the next 30 days, but still tracked. 92nd percentile — 92.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.054 · newest: 0.054 · change: 0.000

Affected products

Cisco iOS Xe Software — versions 3.2.0JA
Cisco iOS Xe — versions 16.3.7

Weakness classification (CWE)

CWE-20 — Improper Input Validation

Public proof-of-concept exploits

alphaSeclab/sec-daily-2019

References

tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190513… (vendor-advisory, Vendor Advisory)
www.kb.cert.org/vuls/id/400865 (third-party-advisory)
www.securityfocus.com/bid/108331 (vdb-entry)

Frequently asked questions

What is CVE-2019-1862?: CVE-2019-1862 is a high-severity vulnerability in Cisco iOS Xe Software, classified under Improper Input Validation. CVSS score: 7.2/10. Published 2019-05-13.
How severe is CVE-2019-1862?: High severity. CVSS v3 base score is 7.2 out of 10.
Is CVE-2019-1862 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.