CVE-2023-27533 - CVE House
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Status published Unknown CVE-2023-27533

A vulnerability in input validation exists in curl <8.0 during...

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

https://github.com/curl/curl
Vulnerable Versions:
Fixed in 8.0.0

Timeline

Official Publish: March 30th, 2023
Last Modified: February 13th, 2026
Added to House: July 22nd, 2026

CVSS Vectors

No vector data available

Weaknesses (CWE)

CWE-75

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.