IRC Xchat client versions 1.4.2 and earlier allows remote attackers to execute arbitrary…
Priority MEDIUM 45Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
IRC Xchat client versions 1.4.2 and earlier allows remote attackers to execute arbitrary commands by encoding shell metacharacters into a URL which XChat uses to launch a web browser.
Why it matters now
EPSS 0.09211 95th 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 · 11
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:xchat:xchat:1.2.1:*:*:*:*:*:*:* | 1.2.1 | Vulnerable | xchat |
| cpe:2.3:a:xchat:xchat:1.3.9:*:*:*:*:*:*:* | 1.3.9 | Vulnerable | xchat |
| cpe:2.3:a:xchat:xchat:1.3.10:*:*:*:*:*:*:* | 1.3.10 | Vulnerable | xchat |
| cpe:2.3:a:xchat:xchat:1.3.11:*:*:*:*:*:*:* | 1.3.11 | Vulnerable | xchat |
| cpe:2.3:a:xchat:xchat:1.3.12:*:*:*:*:*:*:* | 1.3.12 | Vulnerable | xchat |
| cpe:2.3:a:xchat:xchat:1.3.13:*:*:*:*:*:*:* | 1.3.13 | Vulnerable | xchat |
| cpe:2.3:a:xchat:xchat:1.4:*:*:*:*:*:*:* | 1.4 | Vulnerable | xchat |
| cpe:2.3:a:xchat:xchat:1.4.1:*:*:*:*:*:*:* | 1.4.1 | Vulnerable | xchat |
| cpe:2.3:a:xchat:xchat:1.4.2:*:*:*:*:*:*:* | 1.4.2 | Vulnerable | xchat |
| cpe:2.3:a:xchat:xchat:1.5.6:*:*:*:*:*:*:* | 1.5.6 | Vulnerable | xchat |
- cpe:2.3:a:xchat:xchat:1.2.1:*:*:*:*:*:*:* Versions 1.2.1 Vulnerable ·xchat
- cpe:2.3:a:xchat:xchat:1.3.9:*:*:*:*:*:*:* Versions 1.3.9 Vulnerable ·xchat
- cpe:2.3:a:xchat:xchat:1.3.10:*:*:*:*:*:*:* Versions 1.3.10 Vulnerable ·xchat
- cpe:2.3:a:xchat:xchat:1.3.11:*:*:*:*:*:*:* Versions 1.3.11 Vulnerable ·xchat
- cpe:2.3:a:xchat:xchat:1.3.12:*:*:*:*:*:*:* Versions 1.3.12 Vulnerable ·xchat
- cpe:2.3:a:xchat:xchat:1.3.13:*:*:*:*:*:*:* Versions 1.3.13 Vulnerable ·xchat
- cpe:2.3:a:xchat:xchat:1.4:*:*:*:*:*:*:* Versions 1.4 Vulnerable ·xchat
- cpe:2.3:a:xchat:xchat:1.4.1:*:*:*:*:*:*:* Versions 1.4.1 Vulnerable ·xchat
- cpe:2.3:a:xchat:xchat:1.4.2:*:*:*:*:*:*:* Versions 1.4.2 Vulnerable ·xchat
- cpe:2.3:a:xchat:xchat:1.5.6:*:*:*:*:*:*:* Versions 1.5.6 Vulnerable ·xchat
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2000-0787
- 2026-10-03 Alias added: GHSA-9wr3-8fv2-9fcj
References
More Xchat vulnerabilities
- TI-2012-00764 Out-of-bounds write in Xchat-WDK CVSS 3.1CRITICAL 9.8
- TI-2008-02715 Argument injection vulnerability in XChat 2.8.7b and earlier on Windows, when Internet… CVSS 2.0MEDIUM 6.8
- TI-2004-00374 Stack-based buffer overflow in the Socks-5 proxy code for XChat 1.8.0 to 2.0.8, with… CVSS 2.0HIGH 7.5
- TI-2002-00006 XChat 1.8.7 and earlier, including default configurations of 1.4.2 and 1.4.3, allows… CVSS 2.0HIGH 7.5
- TI-2003-00906 xchat 2.0.6 allows remote attackers to cause a denial of service (crash) via a passive… CVSS 3.1HIGH 7.5
- TI-2001-00763 Format string vulnerability in XChat 1.2.x allows remote attackers to execute arbitrary code via a malformed nickname. CVSS 2.0HIGH 7.5
Sources
- CVE-2000-0787 · CVE Program
- CVE-2000-0787 · NVD
- FIRST EPSS
- GHSA-9wr3-8fv2-9fcj · GitHub Advisory Database · CC BY 4.0
- CVE-2000-0787 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences