High Access control

CVE-2026-0506 — Missing Authorization check in SAP NetWeaver Application Server ABAP and ABAP Platform

Due to a Missing Authorization Check vulnerability in Application Server ABAP and ABAP Platform, an authenticated attacker could misuse an RFC function to execute form routines (FORMs) in the ABAP system. Successful exploitation could allow the attacker to write or modify data accessible via FORMs and invoke system functionality exposed via FORMs, resulting in a high impact on integrity and availability, while confidentiality remains unaffected.

Published Jan 12, 2026 · Updated Oct 13, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP · CNA: sap

Low

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

No exploitation signal in the sources consulted so far.

How the score was calculated

EPSS 0.3% (30-day exploitation probability)+3
Technical severity (high)+6

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Exploitation

Not confirmed

Not in CISA KEV — an absence of record, not proof it is unexploited.

EPSS FIRST

0.27%

ahead of 17% of scored CVEs · Oct 14, 2026

Affects

SAP SE

Netweaver Application Server Abap and 1 more

CVSS base

8.1

High · 2 source(s)

CISA SSVC assessment CISA

Three decision points CISA publishes for the CVEs it assesses (SSVC 2.0.3). A stakeholder decision, not a severity score.

Exploitation

None

none · proof-of-concept · active

Automatable

can an attacker script the kill-chain steps

Technical impact

Total

partial · total control of the vulnerable component

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

Documented patch — url.sap (NIST National Vulnerability Database)

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

Identify exposed assets running the affected vendor/product/version combinations (SAP SE Netweaver Application Server Abap, SAP SE SAP NetWeaver Application Server ABAP and ABAP Platform).
Apply the fixed version or the patch documented under Remediation.
Search available logs for exploit probes matching the vulnerability class (access control), errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

Vendor	Product	Versions	Status	Source
SAP SE	Netweaver Application Server Abap	version 701version 700version 816version 758version 757version 756version 755version 754 and 7 more version 753version 752version 751version 750version 740version 731version 702	Vulnerable	NIST National Vulnerability Database
SAP SE	SAP NetWeaver Application Server ABAP and ABAP Platform	version SAP_BASIS 816version SAP_BASIS 758version SAP_BASIS 757version SAP_BASIS 756version SAP_BASIS 755version SAP_BASIS 754version SAP_BASIS 753version SAP_BASIS 752 and 7 more version SAP_BASIS 751version SAP_BASIS 750version SAP_BASIS 740version SAP_BASIS 731version SAP_BASIS 702version SAP_BASIS 701version SAP_BASIS 700	Vulnerable	CVE Program (cve.org) e CISA ADP

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Attack vector

Network

Attack complexity

Low

Privileges required

Low

User interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

High

Every base score collected

Sources score independently and may disagree; each row says who scored it and under which version.

Score	Version	Severity	Expl.	Impact	Scored by
8.1	CVSS 3.1	High	2.8	5.2	cna@sap.com via NIST National Vulnerability Database
8.1	CVSS 3.1	High	—	—	sap via CVE Program (cve.org) e CISA ADP

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H (score shown at the top: cna@sap.com)

Weakness MITRE

Weakness class according to MITRE’s CWE catalog.

CWE-862 · Missing Authorization

Other CVEs with this weakness →

EPSS over time FIRST

Oct 13, 2026 → Oct 14, 2026 · 2 reading(s) · max 0.27%

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

Prioritize edge telemetry for the network-reachable component (proxy, WAF, IDS/IPS).
Audit administrative actions and access to resources outside each user’s normal pattern.

web/proxy/WAF logsnetwork IDS/IPSauthentication logsapplication logs

Timeline

What happened to this CVE, newest first.

2026
Affected products added · sap se/sap netweaver application server abap and abap platform
Oct 13, 2026 · CVE Program (cve.org) e CISA ADP
SSVC assessment updated
Oct 13, 2026 · CVE Program (cve.org) e CISA ADP
Record published
Oct 13, 2026
Fix documented
Oct 13, 2026 · NIST National Vulnerability Database
CVSS changed · 8.1
Oct 13, 2026 · NIST National Vulnerability Database
Source status changed · → Analyzed
Oct 13, 2026 · NIST National Vulnerability Database
Record created in this database
Oct 13, 2026 · NIST National Vulnerability Database
CVE published
Jan 12, 2026 · sap

Source activity

Repeated readings are counted rather than listed.

1× Official description updated · Oct 13, 2026 – Oct 13, 2026

References

2 on the record

url.sap/sapsecuritypatchday
Patch, Vendor Advisory, NIST National Vulnerability Database
me.sap.com/notes/3688703
Permissions Required, NIST National Vulnerability Database

Elsewhere on this site

SAP SE
every CVE for this vendor

Access control
same class

CWE-862
other pages naming this weakness

Related CVEs (same products)

Critical CVE-2026-44747 Memory Corruption vulnerability in SAP NetWeaver Application Server ABAP Jul 13, 2026
Medium CVE-2026-27680 CSS Injection vulnerability in SAP NetWeaver Application Server ABAP May 14, 2026
Medium CVE-2026-40135 OS Command Injection vulnerability in SAP NetWeaver Application Server for ABAP and ABAP Platform May 12, 2026
Medium CVE-2026-27682 Reflected Cross-Site Scripting (XSS) vulnerability in SAP NetWeaver Application Server ABAP (Applications based on Business Server Pages) May 12, 2026
Medium CVE-2026-34257 Open Redirect vulnerability in SAP NetWeaver Application Server ABAP Apr 13, 2026
Medium CVE-2026-27688 Missing Authorization check in SAP NetWeaver Application Server for ABAP Mar 10, 2026

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2026-0506 is "Missing Authorization check in SAP NetWeaver Application Server ABAP and ABAP Platform", rated High. It affects Netweaver Application Server Abap (SAP SE); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 8.1 describes technical severity. EPSS 0.27% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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