Is CVE-2016-3953 in the CISA KEV catalog?

No. CVE-2016-3953 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2016-3953?

CVE-2016-3953 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2016-3953?

CVE-2016-3953 has an EPSS score of 3.38% (87th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2016-3953?

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-2016-3953

CRITICALEPSS 87th pctl

9.8

CVSS v3

NVD

Description

The sample web application in web2py before 2.14.2 might allow remote attackers to execute arbitrary code via vectors involving use of a hardcoded encryption key when calling the session.connect function.

CWE-798Hard-coded Credentials

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

3.38%probability of exploitation in 30 days

87thpercentile

Elevated risk: more likely to be exploited than 87% of all known CVEs.

References

Exploit1

devco.re

Third-Party Advisory1

github.com

Other references1

usn.ubuntu.com

Related Vulnerabilities

Other CWE-798 (Hard-coded Credentials) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2022-26138	Critical	9.8	98%	KEV	-
CVE-2024-3272	Critical	9.8	98%	KEV	-
CVE-2025-30406	Critical	9.0	94%	KEV	Fix
CVE-2024-28987	Critical	9.1	93%	KEV	Fix
CVE-2019-15976	Critical	9.8	93%	-	Fix
CVE-2024-20439	Critical	9.8	92%	KEV	Fix

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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 2024-11-21.