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CVE-2016-3635· NVD / CVE Program· CNA mitre

SAP Netweaver 7.4 allows remote authenticated users to bypass an intended Unified Connectivity (UCON) access control list and execute arbitr

SAP Netweaver 7.4 allows remote authenticated users to bypass an intended Unified Connectivity (UCON) access control list and execute arbitrary Remote Function Modules (RFM) by leveraging a connection created from earlier execution of an anonymous RFM included in a Communication Assembly, aka SAP Security Note 2139366.

HighCVSS 7.5 · v3.0—No exploit No fix recorded
Published
Oct 13, 2016
Updated
Jun 16, 2026
EPSS
2.4% · 84th percentile
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Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
30 / 40 · 7.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 2.4%

Affected systems

VendorProduct
sapnetweaver

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • sap netweaver7.40

Same product

sap: all records

Other highest-scoring records for the same primary product.

  • CVE-2025-31324Missing Authorization check in SAP NetWeaver (Visual Composer development server)KEV
    99Now
  • CVE-2021-38163SAP NetWeaver (Visual Composer 7.0 RT) versions - 7.30, 7.31, 7.40, 7.50, without restriction, an attacker authenticated as a non-administraKEV
    76This week
  • CVE-2025-42999Insecure Deserialization in SAP NetWeaver (Visual Composer development server)KEV
    70This week
  • CVE-2012-2611The DiagTraceR3Info function in the Dialog processor in disp+work.exe 7010.29.15.58313 and 7200.70.18.23869 in the Dispatcher in SAP NetWeav
    50Plan
  • CVE-2013-1592A Buffer Overflow vulnerability exists in the Message Server service _MsJ2EE_AddStatistics() function when sending specially crafted SAP Mes
    46Plan
  • CVE-2015-7241XML External Entity (XXE) vulnerability in SAP Netweaver before 7.01.
    43Plan

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
High
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-284 · Improper Access Control

CVSS vector

CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

We use this product, ask for help

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records