CVE-2014-6447Network attack vector

XSS and service crash via J-Web error handling

Published Feb 11, 2020 · Updated Aug 6, 2024

Cross-site scripting and denial of service in Juniper Junos OS J-Web allow remote attackers to run browser scripts or crash J-Web. J-Web error handling returns crafted request input without validation and can also terminate the service; Juniper has not disclosed the affected handlers. J-Web must be enabled, and script execution additionally requires an administrator to follow a crafted link; exploitation can expose session credentials, trigger administrative actions in that browser, or interrupt J-Web.

CVSS severity7.1
High
EPSS probability0.94%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting and denial of service in Juniper Junos OS J-Web allow remote attackers to run browser scripts or crash J-Web. J-Web error handling returns crafted request input without validation and can also terminate the service; Juniper has not disclosed the affected handlers. J-Web must be enabled, and script execution additionally requires an administrator to follow a crafted link; exploitation can expose session credentials, trigger administrative actions in that browser, or interrupt J-Web.

The record

CVE
CVE-2014-6447
Published
Feb 11, 2020
Updated
Aug 6, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 11, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 6, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.1NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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