AUGUST 4, 2026
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Case File

CVE-2022-43552

MEDIUM · CVSS 5.9 EPSS 2.51%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2023-02-09 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 5.9. See the original NVD description below for full technical details.

CVE
CVE-2022-43552
Severity
MEDIUM
CVSS
5.9
EPSS
2.51%

Original NVD Description

A use after free vulnerability exists in curl <7.87.0. Curl can be asked to *tunnel* virtually all protocols it supports through an HTTP proxy. HTTP proxies can (and often do) deny such tunnel operations. When getting denied to tunnel the specific protocols SMB or TELNET, curl would use a heap-allocated struct after it had been freed, in its transfer shutdown code path.

Related CVEs

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