CVE detail

CVE-2021-1391 — CVE-2021-1391

Published 2021-03-24 · Modified 2026-06-17 · Vendor cisco · Product ios · Source nvd

MEDIUM

severity

CVSS-derived band

5.1

CVSS v3

0–10 scale

0.0031

EPSS probability

exploitation probability, 30d

23.0%

EPSS percentile

percentile vs all CVEs

NOT LISTED

CISA KEV

known exploited catalog

Description

A vulnerability in the dragonite debugger of Cisco IOS XE Software could allow an authenticated, local attacker to escalate from privilege level 15 to root privilege. The vulnerability is due to the presence of development testing and verification scripts that remained on the device. An attacker could exploit this vulnerability by bypassing the consent token mechanism with the residual scripts on the affected device. A successful exploit could allow the attacker to escalate from privilege level 15 to root privilege.

Remediation

Product	Vulnerable range	Fixed version	Advisory
Cisco Cisco IOS	—	not specified	advisory ↗

References

cvedb.io · NVD · CISA KEV · FIRST EPSS · vendor advisories (CVE Program List v5). Informational only, no warranty — verify every remediation against the vendor advisory before acting on it. This product uses data from the NVD API but is not endorsed or certified by the NVD, CISA, FIRST.org or any vendor named. CVE® is a registered trademark of The MITRE Corporation.