7.5

CVE-2023-22512: atlassian confluence_data_center Uncontrolled Resource Consumption

Modified
Published 17-03-2025Last modified 12-05-2025

Vulnerability summary

CVE-2023-22512 is a high (CVSS 7.5) Uncontrolled Resource Consumption vulnerability in atlassian confluence_data_center. EPSS estimates a 15.05% chance of exploitation in the next 30 days, higher than 96.7% of scored vulnerabilities. Fixed in 7.19.13, 7.19.14, 8.5.1, 8.6.0.

Priority
Prioritisesevere

Severe, CVSS 7.5 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 15% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
7.5/10
010
High · v3.0 (CVE.org)
EPSS score
15.05%
0%100%
Medium · +0.36 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Timeline

  1. 17-03-2025
    PublishedVulnerability first disclosed.
  2. 12-05-2025
    Last modifiedVulnerability information updated.

Description

This High severity DoS (Denial of Service) vulnerability was introduced in version 5.6.0 of Confluence Data Center and Server. With a CVSS Score of 7.5, this vulnerability allows an unauthenticated attacker to cause a resource to be unavailable for its intended users by temporarily or indefinitely disrupting services of a vulnerable host (Confluence instance) connected to a network, which has no impact to confidentiality, no 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: Confluence Data Center and Server 7.19: Upgrade to a release greater than or equal to 7.19.14 Confluence Data Center and Server 8.5: Upgrade to a release greater than or equal to 8.5.1 Confluence Data Center and Server 8.6 or above: No need to upgrade, you're already on a patched version 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 reported via our Bug Bounty program.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

15.05%

Chance of exploitation in the next 30 days

Percentile

97%

Versus all other CVEs

30-day change

Increase +0.36 pp

From 14.69% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Atlassian2 products
  • confluence_data_center≥ 5.6.0 (fixed in 7.19.13, 7.19.14, 8.5.1, 8.6.0) | ≥ 5.6, < 7.19.14 | ≥ 8.0.0, < 8.5.1
  • confluence_server≥ 5.6.0 (fixed in 7.19.13, 7.19.14, 8.5.1, 8.6.0) | ≥ 5.6, < 7.19.14 | ≥ 8.0.0, < 8.5.1

1 vendor · 2 products

References

2 links