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CVE-2020-5664

30
FAUCET Score

CVE-2020-5664 is a critical deserialization of untrusted data vulnerability affecting XooNIps 3.49 and earlier versions. This flaw allows remote attackers to execute arbitrary code with high impact on confidentiality, integrity, and availability, as indicated by its CVSS score of 9.8. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion with 10 mentions, suggesting awareness and potential for future exploitation. Organizations using affected XooNIps versions should prioritize patching to mitigate this severe risk.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.49CPE matchmatch criteria
cpe:2.3:a:riken:xoonips:*:*:*:*:*:xoops:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.61%
Probability of exploitation in next 30 days
EPSS Percentile
83.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0261 is in the 74th percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

jvn.jp / en/vu/JVNVU92053563/index.html
Third Party Advisory
xoonips.osdn.jp / modules/news/index.php
Release NotesVendor Advisory