How severe is CVE-2014-3821?

CVE-2014-3821 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2014-3821 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-3821?

CVE-2014-3821 primarily affects Juniper Junos. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-3821?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2014-3821 published?

CVE-2014-3821 was published on 2014-07-11 and last updated on 2026-06-17.

CVE-2014-3821

CVE-2014-3821 is a medium-severity vulnerability in Juniper Junos with a CVSS 2.0 base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 1% (64th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Juniper Junos
Published: 2014-07-11
Last modified: 2026-06-17

Description

Cross-site scripting (XSS) vulnerability in SRX Web Authentication (webauth) in Juniper Junos 11.4 before 11.4R11, 12.1X44 before 12.1X44-D34, 12.1X45 before 12.1X45-D25, 12.1X46 before 12.1X46-D20, and 12.1X47 before 12.1X47-D10 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Frequently asked questions

What is CVE-2014-3821?: Cross-site scripting (XSS) vulnerability in SRX Web Authentication (webauth) in Juniper Junos 11.4 before 11.4R11, 12.1X44 before 12.1X44-D34, 12.1X45 before 12.1X45-D25, 12.1X46 before 12.1X46-D20, and 12.1X47 before 12.1X47-D10 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
How severe is CVE-2014-3821?: CVE-2014-3821 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2014-3821 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-3821?: CVE-2014-3821 primarily affects Juniper Junos. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2014-3821?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2014-3821 published?: CVE-2014-3821 was published on 2014-07-11 and last updated on 2026-06-17.

References

Affected products (5)

cpe:2.3:o:juniper:junos:11.4:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1x44:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1x45:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1x46:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1x47:*:*:*:*:*:*:*

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