CVE-2023-50784

7.5 HIGH
Published: December 16, 2023 Modified: November 04, 2025
View on NVD

Description

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://forums.unrealircd.org/viewtopic.php?t=9340
Source: cve@mitre.org
Release Notes Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BV6TFYPQOKYRGPEAKOWSO6PSCBV6LUR3/
Source: cve@mitre.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EZT7QU4FCQBHYOYVD7FW5QAWNAQCSGLA/
Source: cve@mitre.org
https://www.unrealircd.org/index/news
Source: cve@mitre.org
Product
https://forums.unrealircd.org/viewtopic.php?t=9340
Source: af854a3a-2127-422b-91ae-364da2661108
Release Notes Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BV6TFYPQOKYRGPEAKOWSO6PSCBV6LUR3/
Source: af854a3a-2127-422b-91ae-364da2661108
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EZT7QU4FCQBHYOYVD7FW5QAWNAQCSGLA/
Source: af854a3a-2127-422b-91ae-364da2661108
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BV6TFYPQOKYRGPEAKOWSO6PSCBV6LUR3/
Source: af854a3a-2127-422b-91ae-364da2661108
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EZT7QU4FCQBHYOYVD7FW5QAWNAQCSGLA/
Source: af854a3a-2127-422b-91ae-364da2661108
https://www.unrealircd.org/index/news
Source: af854a3a-2127-422b-91ae-364da2661108
Product

10 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.5 / 10.0
EPSS (Exploit Probability)
1.0%
76th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-120

Affected Vendors

unrealircd

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