What’s Vulnerable › Vulnerabilities

CVE-2019-20057

• Severity: low (CVSS 3.7 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-12-29 · updated 2026-06-17
• Weakness: CWE-345

Description

com.proxyman.NSProxy.HelperTool in Privileged Helper Tool in Proxyman for macOS 1.11.0 and earlier allows an attacker to change the System Proxy and redirect all traffic to an attacker-controlled computer, enabling MITM attacks.

Affected products

• Proxyman: through 1.11.0

References

• https://github.com/ProxymanApp/Proxyman/issues/364
• https://github.com/ProxymanApp/Proxyman/issues/364

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