Is CVE-2021-1391 in the CISA KEV catalog?

No. CVE-2021-1391 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-1391?

CVE-2021-1391 has a CVSS v3 base score of 5.1 (MEDIUM).

What is the EPSS score for CVE-2021-1391?

CVE-2021-1391 has an EPSS score of 0.31% (22th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2021-1391?

No published fix for CVE-2021-1391 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2021-1391

MEDIUM

5.1

CVSS v3

NVD

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.

CWE-489

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredHigh

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityHigh

AvailabilityNone

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:N

Exploit Intelligence

0.31%probability of exploitation in 30 days

22ndpercentile

Low risk: more likely to be exploited than 22% of all known CVEs.

References

Vendor Advisory1

tools.cisco.com

Embed a live status badge for CVE-2021-1391

Markdown

[![CVE-2021-1391](https://tridentstack.com/cve/badge/CVE-2021-1391.svg)](https://tridentstack.com/cve/CVE-2021-1391)

HTML

<a href="https://tridentstack.com/cve/CVE-2021-1391"><img src="https://tridentstack.com/cve/badge/CVE-2021-1391.svg" alt="CVE-2021-1391"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.