CVE-2026-39920

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 ImpacttotalSuccessful exploitation gives total 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

0.54% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 45.1% of scored records. A rank, not a probability.

NVD base score

9.3 (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:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/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

Deferred. NVD last modified this record on 2026-10-26.

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

2026-04-24 15:48Z6 MO AGO

Last updated

2026-04-24 18:17Z6 MO AGO

Reserved

2026-04-07

Assigning CNA

VulnCheck

Record state

PUBLISHED

Severity

Critical (CVSS 9.3)

CNA CVSS vector

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

Weaknesses

• CWE-1188Initialization of a Resource with an Insecure DefaultBase
• CWE-1391Use of Weak CredentialsClass

Data version

5.2

Document digest

aa417cd0a1ed31917e5f872cf863c8632394c1a522095357382cc541fd72110a

• gist.github.comhttps://gist.github.com/VAMorales/9e6a13d7529c079a363930dff48be3batechnical-descriptionexploit
• www.bridgeheadsoftware.comhttps://www.bridgeheadsoftware.com/rapid-data-protection-product-updates/release-notes
• issues.apache.orghttps://issues.apache.org/jira/browse/AXIS2-4279related
• axis.apache.orghttps://axis.apache.org/axis2/java/core/docs/webadminguide.htmlrelated
• www.vulncheck.comhttps://www.vulncheck.com/advisories/bridgehead-filestore-24a-apache-axis2-default-credentials-rcethird-party-advisory