TI-2002-01759 Aliases CVE-2002-1840 GHSA-c25w-grpg-cp6j

irssi IRC client 0.8.4, when downloaded after 14-March-2002, could contain a backdoor in…

MEDIUM 48Published 2005-06-28 · Updated 2024-09-17

Key facts

Attack vector: Network
Privileges required: None
User interaction: — Not recorded in CVSS 2.0
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: Complete · Complete · Complete
Fix status: No fix listed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA.

Summary

irssi IRC client 0.8.4, when downloaded after 14-March-2002, could contain a backdoor in the configuration file, which allows remote attackers to access the system.

Why it matters now

EPSS 0.0277 86th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:irssi:irssi:0.8.4:::::::*	0.8.4	Vulnerable	Irssi

cpe:2.3:a:irssi:irssi:0.8.4:*:*:*:*:*:*:* Versions 0.8.4 Vulnerable ·Irssi

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2002-1840
2026-10-03 Alias added: GHSA-c25w-grpg-cp6j

References

Advisory 1

http://real.irssi.org/?page=backdoor

Other 1

irssi-backdoor-version(9176)

TI-2017-08049 An issue was discovered in Irssi before 1.0.4. CVSS 3.0CRITICAL 9.8
TI-2017-04886 The netjoin processing in Irssi 1.x before 1.0.2 allows attackers to cause a denial of… CVSS 3.0CRITICAL 9.8
TI-2019-11799 Irssi 1.2.x before 1.2.2 has a use-after-free if the IRC server sends a double CAP. CVSS 3.0CRITICAL 9.8
TI-2019-04193 Irssi 1.1.x before 1.1.2 has a use after free when hidden lines are expired from the scroll buffer. CVSS 3.0CRITICAL 9.8
TI-2018-05119 An issue was discovered in Irssi before 1.0.7 and 1.1.x before 1.1.1. CVSS 3.0CRITICAL 9.8
TI-2018-05118 An issue was discovered in Irssi before 1.0.7 and 1.1.x before 1.1.1. CVSS 3.0CRITICAL 9.8

See all 40 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences