CVE-2023-24205: Clash for Windows v0.20.12 was discovered to contain a remote code execution (RCE) vulnerability which is expl

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CRITICAL 9.8REMOTEDOWNGRADE

CVE-2023-24205 is a critical-severity flaw (CVSS 9.8) affecting clash. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Clash for Windows v0.20.12 was discovered to contain a remote code execution (RCE) vulnerability which is exploited via overwriting the configuration file (cfw-setting.yaml).

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.3% (top 30%)
CISA exploited list	No
Weakness	CWE-732
Published	2023-02-23
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: clash project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2023-02-23 22:15 UTCPublished CVE record published
2026-06-17 05:38 UTCUpdated Record last modified

clash project clash DOWNGRADE

Affected: 0.20.12

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.20.12

1. Check installed version

apt-cache policy clash || rpm -q clash || clash --version

2. No fixed release: DOWNGRADE to a release before 0.20.12 (Debian / Ubuntu)

apt-cache madison clash sudo apt install clash=<VERSION_BEFORE_0.20.12> sudo apt-mark hold clash

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list clash sudo dnf downgrade clash-<VERSION_BEFORE_0.20.12> sudo dnf versionlock add clash

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-24205?

clash: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-24205 being exploited?

CVE-2023-24205 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-24205 affect?

CVE-2023-24205 affects clash. Severity is critical (CVSS 9.8). Clash for Windows v0.20.12 was discovered to contain a remote code execution (RCE) vulnerability which is exploited via overwriting the configuration file (cfw-setting.yaml).

How urgent is CVE-2023-24205?

Priority 62/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

Windows vulnerabilities

Related CVEs

CVE-2024-5732 HIGH 7.3 UPGRADE A vulnerability was found in Clash up to 0.20.1 on Windows
CVE-2022-40126 HIGH 7.8 DOWNGRADE A misconfiguration in the Service Mode profile directory of Clash for Windows v0.19.9 allows attackers to esca

References

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