What it is
CVE-2017-9844 is an unauthenticated vulnerability affecting SAP NetWeaver. SAP NetWeaver 7400.12.21.30308 allows remote attackers to cause a denial of service and possibly execute arbitrary code via a crafted...
Vulnerability report
Exploited in the wild
High confidence
Not in CISA KEV
CVE-2017-9844
NetWeaver Denial of Service
SAP / NetWeaver
- Severity
- CVSS 7.5 · High
- Confidence
- High
- Exploit status
- Exploited in the wild
- EPSS
- 5.5%
- 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?
SAP / NetWeaver.
What should we do?
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
Overview
NetWeaver Denial of Service
SAP NetWeaver 7400.12.21.30308 allows remote attackers to cause a denial of service and possibly execute arbitrary code via a crafted serialized Java object in a request to metadatauploader, aka SAP Security Note 2399804.
- Published
- 12 Jul 2017
- Exploitation Reported
- 01 May 2025
- Attack vector
- Remote
- Complexity
- Low
- Privileges
- None
- User interaction
- None
Tags
java
KEV Intelligence Analysis Notes
Analyst-curated context on exploitation evidence and operational relevance.
test
CVE References
- CVE Record CVE.org · CVE Record https://www.cve.org/CVERecord?id=CVE-2017-9844
- 96865 securityfocus.com · VDB Entry http://www.securityfocus.com/bid/96865
- erpscan.io/advisories/erpscan-17-014-sap-netweaver-java... erpscan.io · CVE Record https://erpscan.io/advisories/erpscan-17-014-sap-netweaver-java-deser...
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
Tenable Blog
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 |
|---|---|
| Tenable Blog First | 2025-05-01 08:57 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 v3.1
7.5
High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
5.5%
Weaknesses
Recent mention · Tenable Blog
CVE-2025-31324: Zero-Day Vulnerability in SAP NetWeaver Exploited in the Wild
SAP has released out-of-band patch to address CVE-2025-31324, a critical zero-day vulnerability in SAP NetWeaver that has been exploited by threat actors. Organizations are strongly encouraged to apply patches as soon as possible.BackgroundOn April 22, ReliaQuest published...
Read full advisoryAll CVSS Scores
CVSS v3.1
7.5
High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v2.0
7.5
High
AV:N/AC:L/Au:N/C:P/I:P/A:P
All Mentions
Recent mention · Tenable Blog
CVE-2025-31324: Zero-Day Vulnerability in SAP NetWeaver Exploited in the WildTenable Blog · 25 Apr 2025
SAP has released out-of-band patch to address CVE-2025-31324, a critical zero-day vulnerability in SAP NetWeaver that has been exploited by threat actors. Organizations are strongly encouraged to apply patches as soon as possible.BackgroundOn April 22, ReliaQuest published details of their investigation of exploit activity in SAP NetWeaver servers. Initially it was unclear if their discovery was a new vulnerability or the abuse of CVE-2017-9844, a vulnerability that could lead to a denial-of-service (DoS) condition or arbitrary code execution. ReliaQuest reported their findings to SAP and...
Recent mention · TheHackerNews
New Critical SAP NetWeaver Flaw Exploited to Drop Web Shell, Brute Ratel FrameworkTheHackerNews · 25 Apr 2025
Threat actors are likely exploiting a new vulnerability in SAP NetWeaver to upload JSP web shells with the goal of facilitating unauthorized file uploads and code execution. "The exploitation is likely tied to either a previously disclosed vulnerability like CVE-2017-9844 or an unreported remote file inclusion (RFI) issue," ReliaQuest said in a report published this week. The cybersecurity
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-2017-9844
Free JSON includes basic KEV fields{
"cve_id": "CVE-2017-9844",
"confidence": "High",
"cvss_score": 7.5,
"cvss_estimated": false,
"epss_score": 0.05513,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "attempts": 0, "sensors": 0 }
}Early warning alerts
Get alerts on high-impact exploitation
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