CVE-2017-15721

7.5 HIGH

Published: October 22, 2017 Modified: May 13, 2026

Description

In Irssi before 1.0.5, certain incorrectly formatted DCC CTCP messages could cause a NULL pointer dereference. This is a separate, but similar, issue relative to CVE-2017-9468.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

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

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

http://openwall.com/lists/oss-security/2017/10/22/4

Source: cve@mitre.org

Mailing List Mitigation Patch Third Party Advisory

https://irssi.org/security/irssi_sa_2017_10.txt

Source: cve@mitre.org

Mitigation Patch Vendor Advisory

https://lists.debian.org/debian-lts-announce/2017/12/msg00022.html

Source: cve@mitre.org

Mailing List Third Party Advisory

https://www.debian.org/security/2017/dsa-4016

Source: cve@mitre.org

Third Party Advisory

http://openwall.com/lists/oss-security/2017/10/22/4

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing List Mitigation Patch Third Party Advisory

https://irssi.org/security/irssi_sa_2017_10.txt

Source: af854a3a-2127-422b-91ae-364da2661108

Mitigation Patch Vendor Advisory

https://lists.debian.org/debian-lts-announce/2017/12/msg00022.html

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing List Third Party Advisory

https://www.debian.org/security/2017/dsa-4016

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

8 reference(s) from NVD

Quick Stats

CVSS v3 Score

7.5 / 10.0

EPSS (Exploit Probability)

2.4%

82th percentile

Exploitation Status

Not in CISA KEV

Weaknesses (CWE)

CWE-476

Affected Vendors

irssi debian

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