CVE-2025-6566

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.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• 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

0.70% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 50.4% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/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 13:00Z1 YR AGO

Last updated

2025-06-24 15:36Z1 YR AGO

Reserved

2025-06-24

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Medium (CVSS 6.9)

CNA CVSS vector

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

Weaknesses

• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass
• CWE-121Stack-based Buffer OverflowVariant
• CWE-787Out-of-bounds WriteBase

Data version

5.1

Document digest

55737d6141e41b7272d5b675d781af72086d83290436c7659484cddc81919a17

• vuldb.comVDB-313738 | oatpp Oat++ Deserializer.cpp deserializeArray stack-based overflowhttps://vuldb.com/?id.313738vdb-entrytechnical-description
• vuldb.comVDB-313738 | CTI Indicators (IOB, IOC, IOA)https://vuldb.com/?ctiid.313738signaturepermissions-required
• vuldb.comSubmit #597453 | oatpp oatpp 1.3.1 (commit c9765f9) Uncontrolled Recursionhttps://vuldb.com/?submit.597453third-party-advisory
• github.comhttps://github.com/oatpp/oatpp/issues/1037issue-tracking
• github.comhttps://github.com/user-attachments/files/19579448/oatpp_crash.txtexploit