This vulnerability allows local attackers to escalate privileges on affected installations of X.Org Server. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The ZDI has assigned a CVSS rating of 7.8. The following CVEs are assigned: CVE-2026-50256.
ZDI-26-390: X.Org Server Font Alias Stack-based Buffer Overflow Privilege Escalation Vulnerability
Kurzinfo
Metadaten
- Original (extern): Link oeffnen
- Veroeffentlicht: 2026-06-24 05:00 UTC
- Importiert: 2026-08-24 20:28 UTC
- CVSS: 7.8
- Quelle-ID:
zdi_pub - uid_hash:
0c799a8301f6ac64e1d09cb0fb5351d0a3cbdd9916672834e5f7205ce63e8e04
Inhalt
Verknuepfte CVEs
| CVE-ID | Severity (Quelle) | CVSS (Quelle) | Severity (CVE.org) | CVSS (CVE.org) | EPSS | EPSS-Pctl | Veroeffentlicht (CVE.org) |
|---|---|---|---|---|---|---|---|
HIGH |
7.8 |
HIGH |
7.8 |
2026-06-05 |
Quellen-Details
| Bezeichnung | Name | Kategorie | Tags | Zielgruppe | Sprache | Feed-URL |
|---|---|---|---|---|---|---|
| Zero Day Initiative (Published) | threat_intel | - | de | https://www.zerodayinitiative.com/rss/published/ |