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 mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 15%CVSS: 9.1Exploit: Elevated riskExposed services: Not assessed

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

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
9.1CRITICALmedium confidence
EG Risk
61
EG Risk 61/100CISA SSVC

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%
CISA SSVC: Track at low, Track* at medium and Attend at high mission impact.
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
EPSS PROB
15%
EPSS %ILE
96th
KEV
Not listed

CISA SSVCTrack at low, Track* at medium and Attend at high mission impact.

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.

Exploitation public PoC (EG-KEV: elevated) · Automatable unknown (not published for this CVE) · Technical impact total (CVSS ≥ 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

April 7, 2016

Last Modified

June 17, 2026

Advisory Details (2)

Auto-updated Aug 1, 2026
🔬 Proof of concept available. No fix on record 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 5× in last 7d / 19× 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 141 total refreshes for this CVE.

  1. 2026-10-05 17:38 UTCEPSS rescore
  2. 2026-10-03 14:21 UTCEPSS rescore
  3. 2026-10-01 19:43 UTCEPSS rescore
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  1. 2026-08-25 13:44 UTCEPSS rescore
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  21. 2026-07-25 14:13 UTCEPSS rescore
  22. 2026-07-23 14:14 UTCEPSS rescore
  23. 2026-07-23 01:23 UTCEG score recompute
  24. 2026-07-22 22:02 UTCEG score recompute
  25. 2026-07-22 14:04 UTCEPSS rescore
  26. 2026-07-21 15:21 UTCEPSS rescore
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  28. 2026-07-20 17:03 UTCEPSS rescore
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  44. 2026-07-09 19:05 UTCEPSS rescore
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  46. 2026-07-07 13:42 UTCEPSS rescore
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  54. 2026-06-30 23:19 UTCEPSS rescore
  55. 2026-06-28 14:04 UTCEPSS rescore
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  59. 2026-06-25 13:47 UTCEPSS rescore
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  64. 2026-06-21 01:57 UTCEPSS rescore
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  66. 2026-06-19 19:23 UTCEPSS rescore
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  68. 2026-06-18 17:50 UTCEPSS rescore
  69. 2026-06-17 17:50 UTCEPSS rescore
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  71. 2026-06-16 17:50 UTCEPSS rescore
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  73. 2026-06-15 17:45 UTCEPSS rescore
  74. 2026-06-14 23:14 UTCEPSS rescore
  75. 2026-06-13 22:57 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 ↗

Related CVEs(same CWE)

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 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 (96th percentile of EPSS-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?
No fix for CVE-2016-3974 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix.

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