What is CVE-2015-6674?

CVE-2015-6674 is a critical-severity vulnerability in Inspircd, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.8/10. Published 2017-04-13.

How severe is CVE-2015-6674?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Inspircd

CVE-2015-6674

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.

Vulnerability class: Buffer Overflow

Published 2017-04-13 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.023 (82.4th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 82.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.023 · newest: 0.023 · change: 0.000

Affected products

Inspircd
Debian Linux — versions 7.0, 8.0

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

References

bugs.debian.org/cgi-bin/bugreport.cgi (Patch, Third Party Advisory)
security.gentoo.org/glsa/201512-13 (vendor-advisory, VDB Entry, Third Party Advisory)
www.debian.org/security/2015/dsa-3226 (vendor-advisory, Third Party Advisory)

Frequently asked questions

What is CVE-2015-6674?: CVE-2015-6674 is a critical-severity vulnerability in Inspircd, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.8/10. Published 2017-04-13.
How severe is CVE-2015-6674?: Critical severity. CVSS v3 base score is 9.8 out of 10.