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CVE-2023-50784

HIGHCVSS 7.5/10EPSS 1.91%

Last modified

CVE-2023-50784 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 1.91% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability
1.91%

77.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
UnrealircdUnrealircd>= 6.1.0, < 6.1.4

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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.
How severe is CVE-2023-50784?
CVE-2023-50784 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.91% probability of exploitation in the next 30 days.
How do I fix CVE-2023-50784?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-50784?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST