What it is
CVE-2025-34039 is an unauthenticated Yonyou NC BeanShell Command Injection affecting Yonyou Co., Ltd. UFIDA NC. A code injection vulnerability exists in Yonyou UFIDA NC v6.5 and prior due to the exposure of the...
Vulnerability report
Exploited in the wild
High confidence
Not in CISA KEV
CVE-2025-34039
Yonyou NC BeanShell Command Injection
Yonyou Co. / UFIDA NC · 0 to <= 6.5
- Severity
- CVSS 10.0 · Critical
- Confidence
- High
- Exploit status
- Exploited in the wild
- EPSS
- 0.5%
- First observed
- —
- Last observed
- —
Decision summary
What security teams need to know first
Direct answers before the deeper technical record.
Is it exploited?
Yes. KEV Intelligence tracks this CVE as a known exploited vulnerability. Confidence is high.
Who is affected?
Yonyou Co., Ltd. / UFIDA NC 0 to <= 6.5.
What should we do?
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
Overview
Yonyou NC BeanShell Command Injection
A code injection vulnerability exists in Yonyou UFIDA NC v6.5 and prior due to the exposure of the BeanShell testing servlet (bsh.servlet.BshServlet) without proper access controls. The servlet allows unauthenticated remote attackers to execute arbitrary Java code via the bsh.script parameter.
This can be exploited to run system commands and ultimately gain full control over the target server. The issue is rooted in a third-party JAR component bundled with the application, and the servlet is accessible without authentication on vulnerable installations. Exploitation evidence was observed by the Shadowserver Foundation on 2025-02-05 UTC.
Vendor
Product
Affected
Status
Yonyou Co., Ltd.
UFIDA NC
Through 6.5
Affected
- Published
- 24 Jun 2025
- Exploitation Reported
- 12 Jan 2026
- Attack vector
- Remote
- Complexity
- Low
- Privileges
- None
- User interaction
- None
CVE References
- CVE Record CVE.org · CVE Record https://www.cve.org/CVERecord?id=CVE-2025-34039
- Third-Party Advisory — cnvd.org.cn cnvd.org.cn · Third-Party Advisory https://www.cnvd.org.cn/flaw/show/CNVD-2021-30167
- Third-Party Advisory — vulncheck.com vulncheck.com · Third-Party Advisory https://vulncheck.com/advisories/yonyou-ufida-nc-beanshell-code-injec...
- Exploit — cnblogs.com cnblogs.com · Exploit https://www.cnblogs.com/pursue-security/p/17685141.html
Exploitation evidence
Why KEV Intelligence marks this CVE as exploited
Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.
Exploited in the wild
The Shadowserver
Independent exploitation attestation added to the KEV Intelligence record.
Known exploited vulnerability sources
Per-source evidence links for KEV attestations are available through the KEV Intelligence Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| The Shadowserver First | 2026-01-12 00:00 UTC |
Detection
Operational artifacts and observed signals
Make the evidence actionable in scanner, SOC, and edge-control workflows.
Observed signals
- Request targets
- 0
- User-Agents
- 0
Raw values available in Pro and Enterprise.
Scanner coverage
No scanner integrations recorded yet.
Virtual patch status
No KEV Intelligence virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.
Learn about virtual patches →No detection artifacts or sensor request patterns are available for this CVE yet.
Check back as sensor telemetry and scanner integrations are updated.
Risk and context
Severity, weaknesses, and research context
CVSS v4.0
10.0
Critical
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
EPSS
0.5%
Timeline
From disclosure to observed exploitation
-
Added to KEV Intelligence KEV Feed
High-confidence, third-party attested exploitation
-
CVE published
Vulnerability disclosed publicly
-
CVE ID reserved
Identifier reserved by the CNA
Pro API
Automate this intelligence
Confidence, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
- Evidence confidence and provenance
- First-party sensor telemetry
- PoC and scanner references
- Affected versions and enrichment
- Automation-ready JSON delivery
GET /api/v2/pro/kevs/CVE-2025-34039
Free JSON includes basic KEV fields{
"cve_id": "CVE-2025-34039",
"confidence": "High",
"cvss_score": 10.0,
"cvss_estimated": false,
"epss_score": 0.00501,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "attempts": 0, "sensors": 0 }
}Early warning alerts
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