CyberSecBulletin
CVE-2025-42976NVD status: Deferred

SAP NetWeaver Application Server ABAP (BIC…: Out-of-bounds Read

Published Updated By the CyberSecBulletin desk

CVE-2025-42976 is a high-severity out-of-bounds read vulnerability in SAP NetWeaver Application Server ABAP (BIC Document) from SAP, with a CVSS 3.1 base score of 8.1 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 ABAP (BIC Document) versions: S4COREOP 104; 105; 106, 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 0.47% chance of exploitation within 30 days, which is low compared with other CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Check which version of SAP NetWeaver Application Server ABAP (BIC Document) you run against the affected versions below, and install the vendor's latest release.

Affected products and versions

VendorProductAffected versionsFixed in
SAPSAP NetWeaver Application Server ABAP (BIC Document)S4COREOP 104; 105; 106; 107; 108; SEM-BW 600; 602; 603; and 7 more rangesNot 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
UnchangedImpact stays within the vulnerable component.
Confidentiality
HighAll data handled by the component can be read.
Integrity
NoneNothing can be modified.
Availability
HighThe component can be taken down completely.

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H. Scored by CNA (sap.com).

Official description

SAP NetWeaver Application Server ABAP (BIC Document) allows an authenticated attacker to craft a request that, when submitted to a BIC Document application, could cause a memory corruption error. On successful exploitation, this results in the crash of the target component. Multiple submissions can make the target completely unavailable. A similarly crafted submission can be used to perform an out-of-bounds read operation as well, revealing sensitive information that is loaded in memory at that time. There is no ability to modify any information.

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

How developers prevent this class of flaw

  • Use a language that provides appropriate memory abstractions.

More Out-of-bounds Read vulnerabilities (CWE-125)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
  3. Record last changed materially (score, affected products, status or references).

References

Recent Out-of-bounds Read vulnerabilities

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