Buffer overflow in Unrealircd
CVE-2023-50784
A buffer overflow in websockets in UnrealIRCd 6.1.0 through 6.1.3 before 6.1.4 allows an unauthenticated remote attacker to crash the server by sending an oversized packet (if a websocket port is open). Remote code execution might be possible on some uncommon, older platforms.
Vulnerability class: Buffer Overflow
EPSS: 0.019 (77.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Unrealircd
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Product)
- cve@mitre.org (Release Notes, Vendor Advisory)
- cve@mitre.org (vendor-advisory)
- cve@mitre.org (vendor-advisory)
- af854a3a-2127-422b-91ae-364da2661108
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2023-50784?
- CVE-2023-50784 is a high-severity vulnerability in Unrealircd, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2023-12-16.
- How severe is CVE-2023-50784?
- High severity. CVSS v3 base score is 7.5 out of 10.