CVE-2025-6533

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.49% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 40.1% of scored records. A rank, not a probability.

NVD base score

2.9 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2025-06-24 00:00Z1 YR AGO

Last updated

2025-06-25 15:02Z1 YR AGO

Reserved

2025-06-23

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Medium (CVSS 6.3)

CNA CVSS vector

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

Weaknesses

• CWE-287Improper AuthenticationClass
• CWE-294Authentication Bypass by Capture-replayBase
• CWE-307Improper Restriction of Excessive Authentication AttemptsBase

Data version

5.1

Document digest

d09e36d49057cb2a2cdf38aed54c074e10de2508b00e75c7ba913f9c7a5575e1

• vuldb.comVDB-313652 | xxyopen/201206030 novel-plus CATCHA LoginController.java ajaxLogin authentication replayhttps://vuldb.com/?id.313652vdb-entrytechnical-description
• vuldb.comVDB-313652 | CTI Indicators (IOB, IOC, TTP, IOA)https://vuldb.com/?ctiid.313652signaturepermissions-required
• vuldb.comSubmit #596481 | xxyopen novel-plus 5.1.3 Improper Restriction of Excessive Authentication Attemptshttps://vuldb.com/?submit.596481third-party-advisory
• blog.0xd00.comhttps://blog.0xd00.com/blog/captcha-replay-attack-lead-to-brute-force-protection-bypassrelated
• blog.0xd00.comhttps://blog.0xd00.com/blog/captcha-replay-attack-lead-to-brute-force-protection-bypass#pocexploit