CVE-2025-34320Network attack vector

Unauthenticated command execution via traversal-exposed credentials

Published Nov 20, 2025 · Updated Jul 14, 2026

Path traversal in the Jetty web endpoint in BASIS BBj before 25.00 allows remote attackers to read service-accessible files. The endpoint fails to validate or canonicalize path segments before resolving a requested resource, so traversal sequences escape the intended directory. No authentication is required; exposed configuration credentials grant Enterprise Manager administration and command execution under the BBj service account.

CVSS severity9.3
Critical
EPSS probability0.81%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Path traversal in the Jetty web endpoint in BASIS BBj before 25.00 allows remote attackers to read service-accessible files. The endpoint fails to validate or canonicalize path segments before resolving a requested resource, so traversal sequences escape the intended directory. No authentication is required; exposed configuration credentials grant Enterprise Manager administration and command execution under the BBj service account.

The record

CVE
CVE-2025-34320
Published
Nov 20, 2025
Updated
Jul 14, 2026
Vendor
BASIS International Ltd.
Product
BBj
Classifications
CWE-22, T1190, T1005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 20, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 14, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <25.00

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

BASIS International Ltd. · BBjversion=0 <25.00

Published CVSS scores

9.3VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1190Exploit Public-Facing Application
T1005Data from Local System

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo