Is CVE-2016-2805 in the CISA KEV catalog?

No. CVE-2016-2805 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2016-2805?

CVE-2016-2805 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2016-2805?

CVE-2016-2805 has an EPSS score of 4.65% (91th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2016-2805?

Upgrade thunderbird on ubuntu 14.04 to 1:38.8.0+build1-0ubuntu0.14.04.1 or later.

CVE & CISA-KEV Catalog

CVE-2016-2805

HIGHEPSS 91th pctl

8.8

CVSS v3

NVD

Description

Unspecified vulnerability in the browser engine in Mozilla Firefox ESR 38.x before 38.8 allows remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors.

CWE-119Buffer Overflow

How to fix

Remediation Available

thunderbirdUbuntu

Fixed in:1:38.8.0+build1-0ubuntu0.14.04.1USN-2973-1

Fixed in:1:38.8.0+build1-0ubuntu0.16.04.1USN-2973-1

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 InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

4.65%probability of exploitation in 30 days

91stpercentile

High risk: more likely to be exploited than 91% of all known CVEs.

References

Vendor Advisory1

mozilla.org

Other references12

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.