What’s Vulnerable › Vulnerabilities

CVE-2019-17624

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2019-10-16 · updated 2026-06-17
• Weakness: CWE-787

Description

"" In X.Org X Server 1.20.4, there is a stack-based buffer overflow in the function XQueryKeymap. For example, by sending ct.c_char 1000 times, an attacker can cause a denial of service (application crash) or possibly have unspecified other impact. Note: It is disputed if the X.Org X Server is involved or if there is a stack overflow.

Affected products

• xorg-x11-server: through 1.20.4

References

• http://packetstormsecurity.com/files/154868/X.Org-X-Server-1.20.4-Local-Stack-Overflow.html
• https://www.exploit-db.com/exploits/47507
• https://www.x.org/releases/individual/xserver/
• http://packetstormsecurity.com/files/154868/X.Org-X-Server-1.20.4-Local-Stack-Overflow.html
• https://www.exploit-db.com/exploits/47507
• https://www.x.org/releases/individual/xserver/

Get alerted when CVE-2019-17624 or the next vulnerability affects your stack