How severe is CVE-2015-7749?

CVE-2015-7749 has a CVSS 2.0 base score of 7.8, rated high severity.

Is CVE-2015-7749 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-7749?

CVE-2015-7749 affects Juniper Junos. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-7749?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2015-7749 published?

CVE-2015-7749 was published on 2015-10-19 and last updated on 2026-06-17.

CVE-2015-7749

CVE-2015-7749 is a high-severity vulnerability in Juniper Junos with a CVSS 2.0 base score of 7.8. 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-20.

Key facts

Severity: High (CVSS 2.0 base score 7.8)
EPSS exploit prediction: 2% (80th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Juniper Junos
Published: 2015-10-19
Last modified: 2026-06-17

Description

The PFE daemon in Juniper vSRX virtual firewalls with Junos OS before 15.1X49-D20 allows remote attackers to cause a denial of service via an unspecified connection request to the "host-OS."

Frequently asked questions

What is CVE-2015-7749?: The PFE daemon in Juniper vSRX virtual firewalls with Junos OS before 15.1X49-D20 allows remote attackers to cause a denial of service via an unspecified connection request to the "host-OS."
How severe is CVE-2015-7749?: CVE-2015-7749 has a CVSS 2.0 base score of 7.8, rated high severity.
Is CVE-2015-7749 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-7749?: CVE-2015-7749 affects Juniper Junos. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-7749?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2015-7749 published?: CVE-2015-7749 was published on 2015-10-19 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:juniper:junos:*:d10:*:*:*:*:*:*

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