An issue in ThinkCMF X2.2.2 and below allows attackers to execute arbitrary code via a crafted packet.

published 2021-12-22 4 y ago modified 2026-06-17 4 mo ago also EUVD-2020-13386

cvss: 9.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 7.4%; EPSS 7.4% chance of exploitation in 30 days, percentile 94%
public exploits: 0; none known, plus a Nuclei check

Exploit prediction

7.42% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

Nuclei template ThinkCMF X2.2.2 - Remote Code Execution nuclei detection template
blog.riskivy.com https://blog.riskivy.com/thinkcmf-%e6%a1%86%e6%9e%b6%e4%b8%8a%e7%9a%84%e4%bb%bb%e6%84%8f%e5%86%85%e5%ae%b9%e5%8c%85%e5%90%ab%e6%bc%8f%e6%b4%9e/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	7.5	AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness

CWE-94 Improper Control of Generation of Code

References

blog.riskivy.com /thinkcmf-%e6%a1%86%e6%9e%b6%e4%b8%8a%e7%9a%84%e4%bb%bb%e6%84%8f%e5%86%85%e5%ae%b9%e5%8c%85%e5%90%ab%e6%bc%8f%
exploit, third-party-advisory

Sources

CVE List CVE-2020-20601
NVD CVE-2020-20601

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary