4.8

CVE-2021-1374: cisco cisco ios xe software Cross-site Scripting

CVSS: 4.8v3.1MediumModified
Published 24-03-2021Last modified 08-11-2024

Vulnerability summary

CVE-2021-1374 is a medium (CVSS 4.8) Cross-site Scripting vulnerability in cisco cisco ios xe software. EPSS estimates a 0.66% chance of exploitation in the next 30 days, higher than 50.7% of scored vulnerabilities.

Overall risk
19/100
0100
Low · default modelHow is this calculated?
CVSS score
4.8/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.66%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 24-03-2021
    PublishedVulnerability first disclosed.
  2. 08-11-2024
    Last modifiedVulnerability information updated.

Description

A vulnerability in the web-based management interface of Cisco IOS XE Wireless Controller software for the Catalyst 9000 Family of switches could allow an authenticated, remote attacker to conduct a cross-site scripting (XSS) attack against another user of the web-based management interface of an affected device. The vulnerability is due to insufficient validation of user-supplied input by the web-based management interface of an affected device. An attacker could exploit this vulnerability by authenticating to the device as a high-privileged user, adding certain configurations with malicious code in one of its fields, and persuading another user to click on it. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or to access sensitive, browser-based information.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

0.66%

Chance of exploitation in the next 30 days

Percentile

51%

Versus all other CVEs

30-day change

+0.02 pp

From 0.64% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.66%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Cisco2 products
  • cisco ios xe softwaren/a
  • ios_xe16.6.1 | 16.6.2 | 16.6.3 | 16.6.4 | 16.6.4a | 16.6.4s | 16.6.5 | 16.6.5a | 16.6.5b | 16.6.6 | 16.6.7 | 16.6.7a | 16.6.8 | 16.7.1 | 16.7.1a | 16.7.1b | 16.7.2 | 16.7.3 | 16.7.4 | 16.8.1 | 16.8.1a | 16.8.1b | 16.8.1c | 16.8.1d | 16.8.1e | 16.8.1s | 16.8.2 | 16.8.3 | 16.9.1 | 16.9.1a | 16.9.1b | 16.9.1c | 16.9.1d | 16.9.1s | 16.9.2 | 16.9.2a | 16.9.2s | 16.9.3 | 16.9.3a | 16.9.3h | 16.9.3s | 16.9.4 | 16.9.4c | 16.9.5 | 16.9.5f | 16.10.1 | 16.10.1a | 16.10.1b | 16.10.1c | 16.10.1d | 16.10.1e | 16.10.1f | 16.10.1g | 16.10.1s | 16.10.2 | 16.10.3 | 16.11.1 | 16.11.1a | 16.11.1b | 16.11.1c | 16.11.1s | 16.11.2 | 16.12.1 | 16.12.1a | 16.12.1c | 16.12.1s | 16.12.1t | 16.12.1w | 16.12.1x | 16.12.1y | 16.12.1z | 16.12.2 | 16.12.2a | 16.12.2s | 16.12.2t | 16.12.3 | 16.12.3a | 16.12.3s | 16.12.4 | 16.12.4a | 17.1.1 | 17.1.1a | 17.1.1s | 17.1.1t | 17.1.2 | 17.2.1 | 17.2.1a | 17.2.1r | 17.2.1v

1 vendor · 2 products

References

1 links