How severe is CVE-2016-10321?

CVE-2016-10321 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-2016-10321 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-10321?

CVE-2016-10321 affects Web2py. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-10321?

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-2016-10321 published?

CVE-2016-10321 was published on 2017-04-10 and last updated on 2026-06-17.

CVE-2016-10321

CVE-2016-10321 is a critical-severity vulnerability in Web2py with a CVSS 3.x base score of 9.8. 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-254.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 5.0
EPSS exploit prediction: 3% (83rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-254
Affected product: Web2py
Published: 2017-04-10
Last modified: 2026-06-17

Description

web2py before 2.14.6 does not properly check if a host is denied before verifying passwords, allowing a remote attacker to perform brute-force attacks.

Frequently asked questions

What is CVE-2016-10321?: web2py before 2.14.6 does not properly check if a host is denied before verifying passwords, allowing a remote attacker to perform brute-force attacks.
How severe is CVE-2016-10321?: CVE-2016-10321 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-2016-10321 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-10321?: CVE-2016-10321 affects Web2py. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-10321?: 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-2016-10321 published?: CVE-2016-10321 was published on 2017-04-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:web2py:web2py:*:*:*:*:*:*:*:*

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