CVE-2024-21683

highpriority · attend · 76EPSS 0.883 · 100 %ileexploit · weaponizedDEEUNLRUUS
grimoire priorityP1 · Urgent
Exploitable?
Public exploit
6 exploits · weaponized
Likely / severe?
88.3% (100th) EPSS
CVSS 8.8 · high
Is it mine?
82 products
Check your exposure
Who says so?
5 sources
cnnvd · enisa_euvd · fstec_bdu · ncsc_nl

EPSS · scored 2026-10-27

This High severity RCE (Remote Code Execution) vulnerability was introduced in version 5.2 of Confluence Data Center and Server. This RCE (Remote Code Execution) vulnerability, with a CVSS Score of 7.2, allows an authenticated attacker to execute arbitrary code which has high impact to confidentiality, high impact to integrity, high impact to availability, and requires no user interaction.  Atlassian recommends that Confluence Data Center and Server customers upgrade to latest version. If you are unable to do so, upgrade your instance to one of the specified supported fixed versions. See the release notes https://confluence.atlassian.com/doc/confluence-release-notes-327.html You can download the latest version of Confluence Data Center and Server from the download center https://www.atlassian.com/software/confluence/download-archives. This vulnerability was found internally.

01

cvss

Technical severity, 0–10. One row per scoring source.

8.8
010

base score 0–10 · higher = more severe · hover a vector to decode

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 5.9
v3.18.8highAV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU
v3.17.2highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU
v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · security@atlassian.comexploitability 2.8 · impact 5.9
v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Hsecondary · CVSS-BT (t0sche)
02

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: poc · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USCWE-94US
04

exploits (6)

Public proof-of-concept and weaponised exploit code.

05

affected products (82)

Products and version ranges known to be affected.

showing 20 of 82
06

advisories (2)

Vendor and ecosystem advisories describing this.

  • NCSC-2024-0231Kwetsbaarheden verholpen in Atlassian productenNL2024-05-22csaf · ncsc_nlNL

    Atlassian heeft kwetsbaarheden verholpen in diverse producten, zoals Jira, Confluence en Bitbucket.

  • WID-SEC-W-2024-1210Atlassian Confluence: Mehrere SchwachstellenDeutsch2024-05-21csaf · cert_bundDE

    Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Atlassian Confluence ausnutzen, um beliebigen Programmcode auszuführen, um vertrauliche Informationen offenzulegen und um einen Denial-of-Service-Zustand zu erzeugen.

07

also known as (4)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bduncsc_nlcert_bundNVDCVE.orgMITRE
published 2024-05-21modified 2026-06-17
09

references (9)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan