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No exploitation reported

CVE-2021-31649

No exploitation reported by the sources we read.

  • Published2021-06-24
  • WeaknessCWE-502

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

In applications using jfinal 4.9.08 and below, there is a deserialization vulnerability when using redis,may be vulnerable to remote code execute

Timeline

dates in UTC
  1. 2021-06-2416:15CVE publishedNVD

Versions per branch

NVD · OSV
Jfinal
BranchAffectedFixed in
4.9≤ 4.9.08no fix published
jfinal
BranchAffectedFixed in
4.9≤ 4.9.08no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • NVDCVSS 3.19.8read 2026-10-23
  • NVDCVSS 2.07.5read 2026-10-23
  • NVDweakness (CWE)CWE-502read 2026-10-23
  • FIRST EPSSEPSS score1.8 %2026-11-08
  • OSVaffected packages—
  • GitHub AdvisoriesadvisoryCRITICAL2023-07-11

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2021-06-24
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-h3j8-fr5q-8rfr

Frequently asked questions

What is CVE-2021-31649?

In applications using jfinal 4.9.08 and below, there is a deserialization vulnerability when using redis,may be vulnerable to remote code execute

Is CVE-2021-31649 actively exploited?

Active exploitation of CVE-2021-31649 has not been confirmed. Its EPSS score was 1.8% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-31649?

CVE-2021-31649 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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