SAP NetWeaver Application Server for ABAP and…: Improper Authentication
CVE-2025-0070 is a critical-severity improper authentication vulnerability in SAP NetWeaver Application Server for ABAP and ABAP Platform from SAP, with a CVSS 3.1 base score of 9.9 out of 10. It can be exploited remotely over the network by an attacker with a low-privileged account, without any action from a user. Affected SAP NetWeaver Application Server for ABAP and ABAP Platform versions: KRNL64NUC 7.22; 7.22EXT; KRNL64UC 7.22, and others listed below. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.7% chance of exploitation within 30 days, higher than 54% of scored CVEs.
Critical severity: a successful attack would have severe impact.
What to do
- Check which version of SAP NetWeaver Application Server for ABAP and ABAP Platform you run against the affected versions below, and install the vendor's latest release.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| SAP | SAP NetWeaver Application Server for ABAP and ABAP Platform | KRNL64NUC 7.22; 7.22EXT; KRNL64UC 7.22; 7.53; 8.04; KERNEL 7.22; 7.54; 7.77; and 6 more ranges | Not stated |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- LowA basic user account is enough.
- User interaction
- NoneNo action by a victim is required.
- Scope
- ChangedThe attack can reach beyond the vulnerable component into other systems.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H. Scored by CNA (sap.com).
Official description
SAP NetWeaver Application Server for ABAP and ABAP Platform allows an authenticated attacker to obtain illegitimate access to the system by exploiting improper authentication checks, resulting in privilege escalation. On successful exploitation, this can result in potential security concerns. This results in a high impact on confidentiality, integrity, and availability.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Authentication
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
How developers prevent this class of flaw
- Use an authentication framework or library such as the OWASP ESAPI Authentication feature.
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Other references
Other vulnerabilities in SAP NetWeaver Application Server for ABAP and ABAP Platform
- 7.7 High severity
- 9.0 Critical severity
- 8.8 High severity
Recent Improper Authentication vulnerabilities
- 9.8 Critical severity
- 9.8 Critical severity
- 7.5 High severity
- 9.8 Critical severity
- 7.5 High severity
- 8.1 High severity
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