How severe is CVE-2014-9714?

CVE-2014-9714 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2014-9714 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-2014-9714?

CVE-2014-9714 affects Facebook Hiphop Virtual Machine. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2014-9714?

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

When was CVE-2014-9714 published?

CVE-2014-9714 was published on 2015-04-13 and last updated on 2026-06-17.

CVE-2014-9714

CVE-2014-9714 is a medium-severity vulnerability in Facebook Hiphop Virtual Machine 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: 2% (80th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Facebook Hiphop Virtual Machine
Published: 2015-04-13
Last modified: 2026-06-17

Description

Cross-site scripting (XSS) vulnerability in the WddxPacket::recursiveAddVar function in HHVM (aka the HipHop Virtual Machine) before 3.5.0 allows remote attackers to inject arbitrary web script or HTML via a crafted string to the wddx_serialize_value function.

Frequently asked questions

What is CVE-2014-9714?: Cross-site scripting (XSS) vulnerability in the WddxPacket::recursiveAddVar function in HHVM (aka the HipHop Virtual Machine) before 3.5.0 allows remote attackers to inject arbitrary web script or HTML via a crafted string to the wddx_serialize_value function.
How severe is CVE-2014-9714?: CVE-2014-9714 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2014-9714 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-2014-9714?: CVE-2014-9714 affects Facebook Hiphop Virtual Machine. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2014-9714?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2014-9714 published?: CVE-2014-9714 was published on 2015-04-13 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:facebook:hiphop_virtual_machine:*:*:*:*:*:*:*:*

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