CVE-2023-27533
curl - security update
8.8
HIGH
CVSS 3.1
EPSS 0.18%
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.
How to fix CVE-2023-27533
To remediate CVE-2023-27533, upgrade the affected package to a fixed version below.
- —upgrade to 8.0.1-r0 or later
- —upgrade to 7.74.0-1.3+deb11u8 or later
- —upgrade to 7.64.0-4+deb10u6 or later
Is CVE-2023-27533 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 8.0.1-r0
- from 0, < 7.74.0-1.3+deb11u8
- from 0, < 7.64.0-4+deb10u6
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |