How severe is CVE-2017-14143?

CVE-2017-14143 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2017-14143 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 75% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-14143?

CVE-2017-14143 affects Kaltura Kaltura Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-14143?

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

When was CVE-2017-14143 published?

CVE-2017-14143 was published on 2017-09-19 and last updated on 2026-06-17.

CVE-2017-14143

CVE-2017-14143 is a critical-severity vulnerability in Kaltura Kaltura Server with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 75% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-798.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 75% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-798
Affected product: Kaltura Kaltura Server
Published: 2017-09-19
Last modified: 2026-06-17

Description

The getUserzoneCookie function in Kaltura before 13.2.0 uses a hardcoded cookie secret to validate cookie signatures, which allows remote attackers to bypass an intended protection mechanism and consequently conduct PHP object injection attacks and execute arbitrary PHP code via a crafted userzone cookie.

Frequently asked questions

What is CVE-2017-14143?: The getUserzoneCookie function in Kaltura before 13.2.0 uses a hardcoded cookie secret to validate cookie signatures, which allows remote attackers to bypass an intended protection mechanism and consequently conduct PHP object injection attacks and execute arbitrary PHP code via a crafted userzone cookie.
How severe is CVE-2017-14143?: CVE-2017-14143 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2017-14143 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 75% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-14143?: CVE-2017-14143 affects Kaltura Kaltura Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-14143?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2017-14143 published?: CVE-2017-14143 was published on 2017-09-19 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:kaltura:kaltura_server:*:*:*:*:*:*:*:*

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