How severe is CVE-2016-9450?

CVE-2016-9450 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2016-9450 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-9450?

CVE-2016-9450 primarily affects Drupal. In total, 61 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-9450?

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-2016-9450 published?

CVE-2016-9450 was published on 2016-11-25 and last updated on 2026-06-17.

CVE-2016-9450

CVE-2016-9450 is a high-severity vulnerability in Drupal with a CVSS 3.x base score of 7.5. 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-345.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-345
Affected product: Drupal
Published: 2016-11-25
Last modified: 2026-06-17

Description

The user password reset form in Drupal 8.x before 8.2.3 allows remote attackers to conduct cache poisoning attacks by leveraging failure to specify a correct cache context.

Frequently asked questions

What is CVE-2016-9450?: The user password reset form in Drupal 8.x before 8.2.3 allows remote attackers to conduct cache poisoning attacks by leveraging failure to specify a correct cache context.
How severe is CVE-2016-9450?: CVE-2016-9450 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2016-9450 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-9450?: CVE-2016-9450 primarily affects Drupal. In total, 61 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-9450?: 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-2016-9450 published?: CVE-2016-9450 was published on 2016-11-25 and last updated on 2026-06-17.

References

Affected products (61)

cpe:2.3:a:drupal:drupal:8.0.0:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:8.0.0:alpha10:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:8.0.0:alpha11:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:8.0.0:alpha12:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:8.0.0:alpha13:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:8.0.0:alpha14:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:8.0.0:alpha15:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:8.0.0:alpha2:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:8.0.0:alpha3:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:8.0.0:alpha4:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:8.0.0:alpha5:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:8.0.0:alpha6:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:8.0.0:alpha7:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:8.0.0:alpha8:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:8.0.0:alpha9:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:8.0.0:beta1:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:8.0.0:beta10:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:8.0.0:beta11:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:8.0.0:beta12:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:8.0.0:beta13:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:8.0.0:beta14:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:8.0.0:beta15:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:8.0.0:beta16:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:8.0.0:beta2:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:8.0.0:beta3:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:8.0.0:beta4:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:8.0.0:beta6:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:8.0.0:beta7:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:8.0.0:beta9:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:8.0.0:rc1:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:8.0.0:rc2:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:8.0.0:rc3:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:8.0.0:rc4:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:8.0.1:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:8.0.2:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:8.0.3:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:8.0.4:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:8.0.5:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:8.0.6:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:8.1.0:*:*:*:*:*:*:*

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