Is CVE-2016-2146 in the CISA KEV catalog?

No. CVE-2016-2146 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2016-2146?

CVE-2016-2146 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2016-2146?

CVE-2016-2146 has an EPSS score of 3.40% (87th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2016-2146?

Upgrade libapache2-mod-auth-mellon on debian 11 to 0.12.0-1 or later.

CVE & CISA-KEV Catalog

CVE-2016-2146

HIGHEPSS 87th pctl

7.5

CVSS v3

NVD

Description

The am_read_post_data function in mod_auth_mellon before 0.11.1 does not limit the amount of data read, which allows remote attackers to cause a denial of service (worker process crash, web server deadlock, or memory consumption) via a large amount of POST data.

CWE-119Buffer Overflow

How to fix

Remediation Available

libapache2-mod-auth-mellonDebian

Fixed in:0.12.0-1CVE-2016-2146

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

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

3.40%probability of exploitation in 30 days

87thpercentile

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

References

Patch1

github.com

Other references2

Related Vulnerabilities

Other CWE-119 (Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-4966	Critical	9.4	100%	KEV + Ransom	Fix
CVE-2017-11882	High	7.8	100%	KEV + Ransom	-
CVE-2020-0796	Critical	10.0	100%	KEV + Ransom	-
CVE-2008-4250	Critical	9.8	99%	KEV	-
CVE-2017-15944	Critical	9.8	98%	KEV	Fix
CVE-2015-0014	High	10.0	97%	-	-

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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 2026-05-06.