HOME VULNERABILITIESCVE-2017-9469

HIGH

CVE-2017-9469

CWE-119Published: June 7, 2017· Updated: Jun 17, 2026

7.5

CVSS v3.1

Official Description

In Irssi before 1.0.3, when receiving certain incorrectly quoted DCC files, it tries to find the terminating quote one byte before the allocated memory. Thus, remote attackers might be able to cause a crash.

Technical Analysis

CVE-2017-9469 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.

From a weakness classification perspective (CWE-119): Buffer overflow vulnerabilities can lead to arbitrary code execution or denial of service by corrupting adjacent memory.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.None

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

Affected Vendors & Products

Debian1 product(s)

debian linux

irssi1 product(s)

irssi

Source: NVD CPE · 3 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time

Offensive Security exploit database

GitHub PoC Search

Community PoC repositories

Rapid7 / Metasploit

Metasploit module search

Security advisories & exploits

Official NIST entry

CVE Program entry

External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttp://openwall.com/lists/oss-security/2017/06/06/4

PATCHhttps://irssi.org/security/irssi_sa_2017_06.txt

PATCHhttp://openwall.com/lists/oss-security/2017/06/06/4

PATCHhttps://irssi.org/security/irssi_sa_2017_06.txt

ADVISORYhttp://www.debian.org/security/2017/dsa-3885

ADVISORYhttp://www.securityfocus.com/bid/99043

ADVISORYhttp://www.securitytracker.com/id/1038621

ADVISORYhttp://www.debian.org/security/2017/dsa-3885

ADVISORYhttp://www.securityfocus.com/bid/99043

ADVISORYhttp://www.securitytracker.com/id/1038621

All References (10)

→

http://openwall.com/lists/oss-security/2017/06/06/4Mailing List · Patch · Third Party Advisory

→

http://www.debian.org/security/2017/dsa-3885Third Party Advisory

→

http://www.securityfocus.com/bid/99043Third Party Advisory · VDB Entry

→

http://www.securitytracker.com/id/1038621Third Party Advisory · VDB Entry

→

https://irssi.org/security/irssi_sa_2017_06.txtPatch · Vendor Advisory

→

http://openwall.com/lists/oss-security/2017/06/06/4Mailing List · Patch · Third Party Advisory

→

http://www.debian.org/security/2017/dsa-3885Third Party Advisory

→

http://www.securityfocus.com/bid/99043Third Party Advisory · VDB Entry

→

http://www.securitytracker.com/id/1038621Third Party Advisory · VDB Entry

→

https://irssi.org/security/irssi_sa_2017_06.txtPatch · Vendor Advisory

Quick Facts

CVE IDCVE-2017-9469

CVSS Score7.5 / 10

SeverityHIGH

WeaknessCWE-119

CISA KEVNo

Affected2 vendor(s)

PublishedJun 7, 2017

Related CVEs (CWE-119)

Recommended Actions

→Apply vendor patches immediately
→Monitor CVE-2017-9469 in threat intel feeds
→Review IDS/IPS signatures for exploitation attempts

Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.

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