Is CVE-2015-6674 in the CISA KEV catalog?

No. CVE-2015-6674 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2015-6674?

CVE-2015-6674 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2015-6674?

CVE-2015-6674 has an EPSS score of 2.27% (81th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2015-6674?

Upgrade inspircd on debian 11 to 2.0.16-1 or later.

CVE & CISA-KEV Catalog

CVE-2015-6674

CRITICALEPSS 81th pctl

9.8

CVSS v3

NVD

Description

Buffer underflow vulnerability in the Debian inspircd package before 2.0.5-1+deb7u1 for wheezy and before 2.0.16-1 for jessie and sid. NOTE: This issue exists as an additional issue from an incomplete fix of CVE-2012-1836.

CWE-119Buffer Overflow

How to fix

Remediation Available

inspircdDebian

Fixed in:2.0.16-1CVE-2015-6674

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

2.27%probability of exploitation in 30 days

81stpercentile

Elevated risk: more likely to be exploited than 81% of all known CVEs.

References

Patch1

bugs.debian.org

Third-Party Advisory2

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 2026-05-13.