Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2021-31649

29
FAUCET Score

CVE-2021-31649 is a critical deserialization vulnerability affecting jfinal versions 4.9.08 and below when utilizing Redis, potentially leading to remote code execution. With a CVSS score of 9.8, this vulnerability is easily exploitable over the network with low attack complexity, allowing for complete compromise of confidentiality, integrity, and availability. There is currently no public exploit code available, nor has there been any community discussion or media coverage, suggesting it is not actively exploited in the wild.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.9.08CPE matchmatch criteria
cpe:2.3:a:jfinal:jfinal:*:*:*:*:*:*:*:*

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
1.82%
Probability of exploitation in next 30 days
EPSS Percentile
76.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0182 is in the 65th percentile among its peer group of 36,897 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

Vendor Advisories (1)

mavenGHSA-h3j8-fr5q-8rfrcritical

JFinal Java Deserialization Vulnerability

May 24, 2022

References

note.youdao.com / noteshare
ExploitThird Party Advisory
note.youdao.com / ynoteshare1/index.html
ExploitThird Party Advisory