CVE-2020-24772
CVE-2020-24772 is a high-severity vulnerability in Clash Project Clash with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-346.
Key facts
- Severity: High (CVSS 3.x base score 8.8)
- CVSS v2: 6.8
- EPSS exploit prediction: 1% (46th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-346
- Affected product: Clash Project Clash
- Published:
- Last modified:
Description
In Dreamacro Clash for Windows v0.11.4, an attacker could embed a malicious iframe in a website with a crafted URL that would launch the Clash Windows client and force it to open a remote SMB share. Windows will perform NTLM authentication when opening the SMB share and that request can be relayed (using a tool like responder) for code execution (or captured for hash cracking).
Frequently asked questions
- What is CVE-2020-24772?
- In Dreamacro Clash for Windows v0.11.4, an attacker could embed a malicious iframe in a website with a crafted URL that would launch the Clash Windows client and force it to open a remote SMB share. Windows will perform NTLM authentication when opening the SMB share and that request can be relayed (using a tool like responder) for code execution (or captured for hash cracking).
- How severe is CVE-2020-24772?
- CVE-2020-24772 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2020-24772 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-24772?
- CVE-2020-24772 affects Clash Project Clash. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-24772?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2020-24772 published?
- CVE-2020-24772 was published on 2022-03-21 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:clash_project:clash:0.11.4:*:*:*:*:windows:*:*
More vulnerabilities in Clash Project Clash
- CVE-2023-24205 — Critical (CVSS 9.8): Clash for Windows v0.20.12 was discovered to contain a remote code execution (RCE) vulnerability which is exploited via…
- CVE-2022-26255 — Critical (CVSS 9.8): Clash for Windows v0.19.8 was discovered to allow arbitrary code execution via a crafted payload injected into the…
- CVE-2022-40126 — High (CVSS 7.8): A misconfiguration in the Service Mode profile directory of Clash for Windows v0.19.9 allows attackers to escalate…
All CVEs affecting Clash Project Clash →
Other CWE-346 vulnerabilities
- CVE-2026-42901 — Critical (CVSS 10.0): Origin validation error in Microsoft Entra ID allows an unauthorized attacker to elevate privileges over a network.
- CVE-2026-6508 — Critical (CVSS 9.8): Origin Validation Error vulnerability in TUBITAK BILGEM Software Technologies Research Institute Liderahenk allows…
- CVE-2026-2790 — Critical (CVSS 9.8): Same-origin policy bypass in the Networking: JAR component. This vulnerability was fixed in Firefox 148, Firefox ESR…
- CVE-2022-50925 — Critical (CVSS 9.8): Prowise Reflect version 1.0.9 contains a remote keystroke injection vulnerability that allows attackers to send…
- CVE-2025-30466 — Critical (CVSS 9.8): This issue was addressed through improved state management. This issue is fixed in Safari 18.4, iOS 18.4 and iPadOS…
- CVE-2024-8487 — Critical (CVSS 9.8): A Cross-Origin Resource Sharing (CORS) vulnerability exists in modelscope/agentscope version v0.0.4. The CORS…