How severe is CVE-2016-3976?

CVE-2016-3976 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2016-3976 being actively exploited?

Yes. CVE-2016-3976 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2021-11-03, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2016-3976?

CVE-2016-3976 affects Sap Netweaver Application Server Java. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-3976?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2016-3976 have an EU (EUVD) identifier?

Yes. CVE-2016-3976 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2016-4985. It is also flagged as exploited in the EUVD (since 2021-11-03).

When was CVE-2016-3976 published?

CVE-2016-3976 was published on 2016-04-07 and last updated on 2026-06-17.

CVE-2016-3976

CVE-2016-3976 is a high-severity vulnerability in Sap Netweaver Application Server Java with a CVSS 3.x base score of 7.5. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2021-11-03). The underlying weakness is classified as CWE-22.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 47% (99th percentile)
Actively exploited: Yes — listed in CISA KEV (added 2021-11-03)
EU (EUVD) id: EUVD-2016-4985
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2021-11-03)
Weakness: CWE-22
Affected product: Sap Netweaver Application Server Java
Published: 2016-04-07
Last modified: 2026-06-17

Description

Directory traversal vulnerability in SAP NetWeaver AS Java 7.1 through 7.5 allows remote attackers to read arbitrary files via a ..\ (dot dot backslash) in the fileName parameter to CrashFileDownloadServlet, aka SAP Security Note 2234971.

Frequently asked questions

What is CVE-2016-3976?: Directory traversal vulnerability in SAP NetWeaver AS Java 7.1 through 7.5 allows remote attackers to read arbitrary files via a ..\ (dot dot backslash) in the fileName parameter to CrashFileDownloadServlet, aka SAP Security Note 2234971.
How severe is CVE-2016-3976?: CVE-2016-3976 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2016-3976 being actively exploited?: Yes. CVE-2016-3976 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2021-11-03, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2016-3976?: CVE-2016-3976 affects Sap Netweaver Application Server Java. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-3976?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2016-3976 have an EU (EUVD) identifier?: Yes. CVE-2016-3976 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2016-4985. It is also flagged as exploited in the EUVD (since 2021-11-03).
When was CVE-2016-3976 published?: CVE-2016-3976 was published on 2016-04-07 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:sap:netweaver_application_server_java:*:*:*:*:*:*:*:*

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