SAP Web Dispatcher and Internet Communication…: Internal Asset Exposed to Unsafe Debug Access Level or State
CVE-2025-42878 is a high-severity internal asset exposed to unsafe debug access level or state vulnerability in SAP Web Dispatcher and Internet Communication Manager (ICM) from SAP, with a CVSS 3.1 base score of 8.2 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, but only if a user takes part, for example by opening a link or file. Affected SAP Web Dispatcher and Internet Communication Manager (ICM) 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 0.39% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Check which version of SAP Web Dispatcher and Internet Communication Manager (ICM) you run against the affected versions below, and install the vendor's latest release.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
- Because the attack needs a user to take part, warn users about unexpected links and files related to this product until it is patched.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| SAP | SAP Web Dispatcher and Internet Communication Manager (ICM) | KRNL64NUC 7.22; 7.22EXT; KRNL64UC 7.22; 7.53; WEBDISP 7.22_EXT; 7.54; 7.77; 7.89; and 3 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
- HighSuccess depends on conditions outside the attacker's control.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- RequiredA user must take an action such as opening a file or link.
- Scope
- ChangedThe attack can reach beyond the vulnerable component into other systems.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- LowLimited modification of data is possible.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:H. Scored by CNA (sap.com).
Official description
SAP Web Dispatcher and ICM may expose internal testing interfaces that are not intended for production. If enabled, unauthenticated attackers could exploit them to access diagnostics, send crafted requests, or disrupt services. This vulnerability has a high impact on confidentiality, availability and low impact on integrity and of the application.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Internal Asset Exposed to Unsafe Debug Access Level or State
The product uses physical debug or test interfaces with support for multiple access levels, but it assigns the wrong debug access level to an internal asset, providing unintended access to the asset from untrusted debug agents.
How developers prevent this class of flaw
- For security-sensitive assets accessible over debug/test interfaces, only allow trusted agents.
- Apply blinding or masking techniques in strategic areas.
- Add shielding or tamper-resistant protections to the device, which increases the difficulty and cost for accessing debug/test interfaces.
More Internal Asset Exposed to Unsafe Debug Access Level or State vulnerabilities (CWE-1244)
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
Recent Internal Asset Exposed to Unsafe Debug Access Level or State vulnerabilities
- 7.5 High severity
- 8.1 High severity
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