Is CVE-2016-10321 in the CISA KEV catalog?

No. CVE-2016-10321 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2016-10321?

CVE-2016-10321 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2016-10321?

CVE-2016-10321 has an EPSS score of 2.59% (83th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2016-10321?

Upgrade python-gluon on ubuntu 16.04 to 2.12.3-1ubuntu0.1 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2016-10321

CRITICALEPSS 83th pctl

9.8

CVSS v3

NVD

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.

CWE-254

How to fix

Remediation Available

python-gluonUbuntu

Fixed in:2.12.3-1ubuntu0.1USN-4030-1

python-web2pyUbuntu

Fixed in:2.12.3-1ubuntu0.1USN-4030-1

web2pyUbuntu

Fixed in:2.12.3-1ubuntu0.1USN-4030-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

2.59%probability of exploitation in 30 days

83rdpercentile

Elevated risk: more likely to be exploited than 83% of all known CVEs.

References

Patch1

github.com

Third-Party Advisory1

github.com

Other references1

usn.ubuntu.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-13.