CVE-2016-3635 — 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

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HIGH

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

Published Oct 13, 2016

7.5

HIGH

CVSS 3.0

EPSS 2.44%

Description

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.

Affected products

Remediation

No remediation recorded yet.

Metrics

2.44% 0.02444

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.02444

Score over time

2022–2026

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Percentile over time

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Table of values (11 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	2.44% (0.02444)	83.75th	v5 (v2026.06.15)
Jun 15, 2026	2.44% (0.02444)	82.15th	v5 (v2026.06.15)
Jun 16, 2025	0.59% (0.00592)	68.21th	v4 (v2025.03.14)
Mar 29, 2025	1.62% (0.01624)	70.32th	v4 (v2025.03.14)
Mar 17, 2025	0.55% (0.00553)	66.10th	v4 (v2025.03.14)
Dec 12, 2024	0.41% (0.00408)	74.66th	v3 (v2023.03.01)
Feb 8, 2024	0.40% (0.00399)	72.86th	v3 (v2023.03.01)
Mar 7, 2023	0.40% (0.00399)	69.43th	v3 (v2023.03.01)
Mar 6, 2023	8.09% (0.08087)	93.34th	v2 (v2022.01.01)
Apr 1, 2022	8.09% (0.08087)	92.72th	v2 (v2022.01.01)
Feb 4, 2022	8.09% (0.08087)	81.87th	v2 (v2022.01.01)

Weaknesses (1)

CWE-284

References (3)

http://seclists.org/fulldisclosure/2016/Oct/48
mailing-listx_refsource_FULLDISCMailing ListThird Party Advisory
http://www.securityfocus.com/bid/93501
vdb-entryx_refsource_BID
https://www.onapsis.com/research/security-advisories/sap-ucon-security-protection-bypass
x_refsource_MISCPermissions Required

Link	Providers	Tags
http://seclists.org/fulldisclosure/2016/Oct/48		mailing-listx_refsource_FULLDISCMailing ListThird Party Advisory
http://www.securityfocus.com/bid/93501		vdb-entryx_refsource_BID
https://www.onapsis.com/research/security-advisories/sap-ucon-security-protection-bypass		x_refsource_MISCPermissions Required

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner mitre

Published Oct 13, 2016

Updated Aug 6, 2024

Reserved Mar 22, 2016

Link CVE-2016-3635

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 17, 2026

Link CVE-2016-3635

Red Hat

Severity n/a

Public date n/a

Links CVE-2016-3635