CVE-2023-27533

Public Exploit

Description

A vulnerability in input validation exists in curl <8.0 during communication using the TELNET protocol may allow an attacker to pass on maliciously crafted user name and "telnet options" during server negotiation. The lack of proper input scrubbing allows an attacker to send content or perform option negotiation without the application's intent. This vulnerability could be exploited if an application allows user input, thereby enabling attackers to execute arbitrary code on the system.

Categories

8.8
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.11%
Vendor Advisory fedoraproject.org Vendor Advisory gentoo.org
Affected: n/a https://github.com/curl/curl
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2023-27533?
CVE-2023-27533 has been scored as a high severity vulnerability.
How to fix CVE-2023-27533?
To fix CVE-2023-27533, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-27533 being actively exploited in the wild?
It is possible that CVE-2023-27533 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-27533?
CVE-2023-27533 affects n/a https://github.com/curl/curl.
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