Medium Denial of service

CVE-2023-27270 — Denial of Service (DoS) in SAP NetWeaver AS for ABAP and ABAP Platform

SAP NetWeaver Application Server for ABAP and ABAP Platform - versions 700, 701, 702, 731, 740, 750, 751, 752, 753, 754, 755, 756, 757, 791, has multiple vulnerabilities in a class for test purposes in which an attacker authenticated as a non-administrative user can craft a request with certain parameters, which will consume the server's resources sufficiently to make it unavailable. There is no ability to view or modify any information.

Published Mar 14, 2023 · Updated Oct 28, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP, GitHub Security Advisories · 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 0.6% (30-day exploitation probability)+7
Technical severity (medium)+3

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

0.61%

ahead of 49% of scored CVEs · Oct 29, 2026

Affects

SAP SE

Netweaver Application Server Abap and 1 more

CVSS base

6.5

Medium · 4 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

Partial

partial · total control of the vulnerable component

Remediation

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

No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.

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 for ABAP and ABAP Platform).
No fix documented in the sources: reduce exposure and monitor the vendor advisory.
Search available logs for exploit probes matching the vulnerability class (denial of service), 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 791version 757version 756version 755version 754version 753 and 6 more version 752version 751version 750version 740version 731version 702	Vulnerable	NIST National Vulnerability Database
SAP SE	SAP NetWeaver Application Server for ABAP and ABAP Platform	version 791version 757version 756version 755version 754version 753version 752version 751 and 6 more version 750version 740version 731version 702version 701version 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

None

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
6.5	CVSS 3.1	Medium	2.8	3.6	cna@sap.com via NIST National Vulnerability Database
6.5	CVSS 3.1	Medium	2.8	3.6	nvd@nist.gov via NIST National Vulnerability Database
6.5	CVSS 3.1	Medium	—	—	GitHub, Inc. via GitHub Security Advisories
6.5	CVSS 3.1	Medium	—	—	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:N/A:H (score shown at the top: nvd@nist.gov)

Weakness MITRE

Weakness class according to MITRE’s CWE catalog.

CWE-400 · Uncontrolled Resource Consumption

Other CVEs with this weakness →

EPSS over time FIRST

Oct 28, 2026 → Oct 29, 2026 · 2 reading(s) · max 0.61%

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).
Track CPU/memory spikes and availability drops correlated with request patterns.

web/proxy/WAF logsnetwork IDS/IPSresource metrics

Timeline

What happened to this CVE, newest first.

2026
Affected products added · sap/netweaver application server for abap and abap platform
Oct 28, 2026 · CVE Program (cve.org) e CISA ADP
SSVC assessment updated
Oct 28, 2026 · CVE Program (cve.org) e CISA ADP
Record published
Oct 28, 2026
CVSS changed · 6.5
Oct 28, 2026 · NIST National Vulnerability Database
Source status changed · → Modified
Oct 28, 2026 · NIST National Vulnerability Database
Record created in this database
Oct 28, 2026 · NIST National Vulnerability Database
2023
CVE published
Mar 14, 2023 · sap

Source activity

Repeated readings are counted rather than listed.

1× References added · Oct 28, 2026 – Oct 28, 2026
1× Official description updated · Oct 28, 2026 – Oct 28, 2026

References

4 on the record

www.sap.com/documents/2022/02/fa865ea4-167e-0010-bca6-c68f7e60039b.html
Vendor Advisory, NIST National Vulnerability Database
launchpad.support.sap.com/
Permissions Required, NIST National Vulnerability Database
nvd.nist.gov/vuln/detail/CVE-2023-27270
GitHub Security Advisories
github.com/advisories/GHSA-v889-jqhm-9wff
GitHub Security Advisories

Elsewhere on this site

SAP SE
every CVE for this vendor

Denial of service
same class

CWE-400
other pages naming this weakness

Related CVEs (same products)

High CVE-2026-66767 Memory Corruption vulnerability in SAP NetWeaver Application Server for ABAP and ABAP Platform Sep 7, 2026
Medium CVE-2026-66779 Cross-Site Scripting (XSS) vulnerability in SAP NetWeaver Application Server ABAP Aug 10, 2026
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

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 fixed version, patch or mitigation documented.
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-2023-27270 is "Denial of Service (DoS) in SAP NetWeaver AS for ABAP and ABAP Platform", rated Medium. 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 6.5 describes technical severity. EPSS 0.61% 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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