CVE-2016-3974

CRITICALNVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

Score 9.1 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-13. NVD baseline CVSS 9.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
9.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 15%CVSS: 9.1Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

XML external entity (XXE) vulnerability in the Configuration Wizard in SAP NetWeaver Java AS 7.1 through 7.5 allows remote attackers to cause a denial of service, conduct SMB Relay attacks, or access arbitrary files via a crafted XML request to _tc~monitoring~webservice~web/ServerNodesWSService, aka SAP Security Note 2235994.

CVSS v3
9.1
EG Score
9.1(medium)
EG Risk
61(Track*)
EG Risk 61/100SSVC: Track*

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity91% × 45%
Exploitation40% × 40%
Automatability30% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
15%
EPSS %ILE
96%
KEV
Not listed

Published

April 7, 2016

Last Modified

June 17, 2026

Advisory Details (2)

Auto-updated Aug 1, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

SAP NetWeaver AS JAVA 7.1 < 7.5 - 'ctcprotocol Servlet' XML External Entity - Java webapps Exploit

https://www.exploit-db.com/exploits/39995/
generic

Full Disclosure: [ERPSCAN-16-013] SAP NetWeaver AS Java ctcprotocol servlet - XXE vulnerability

http://seclists.org/fulldisclosure/2016/Jun/41

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 6× in last 7d / 21× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 114 total refreshes for this CVE.

  1. 2026-08-19 16:59 UTCEPSS rescore
  2. 2026-08-18 13:43 UTCEPSS rescore
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  21. 2026-07-23 01:23 UTCEG score recompute
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  50. 2026-06-12 23:09 UTCEPSS rescore
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  65. 2026-05-31 22:28 UTCEPSS rescore
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  74. 2026-05-26 07:16 UTCEPSS rescore
  75. 2026-05-24 16:43 UTCEPSS rescore

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-39995
    First seen Jun 21, 2016

    SAP NetWeaver AS JAVA 7.1 < 7.5 - 'ctcprotocol Servlet' XML External Entity

    Open source ↗

Frequently asked(5)

What is CVE-2016-3974?
CVE-2016-3974 is a critical vulnerability published on April 7, 2016. XML external entity (XXE) vulnerability in the Configuration Wizard in SAP NetWeaver Java AS 7.1 through 7.5 allows remote attackers to cause a denial of service, conduct SMB Relay attacks, or access arbitrary files via a crafted XML request to _tc~monitoring~webservice~web/ServerNodesWSService,…
When was CVE-2016-3974 disclosed?
CVE-2016-3974 was first published in the National Vulnerability Database on April 7, 2016, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2016-3974 actively exploited?
CVE-2016-3974 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 15% probability of exploitation in the next 30 days, which ranks it in the top 3.5% of all scored CVEs.
What is the CVSS score of CVE-2016-3974?
CVE-2016-3974 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2016-3974?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2016-3974, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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