RUGGEDCOM CROSSBOW Station Access Controller…: Improper Clearing of Heap Memory Before Release
CVE-2025-70873 is a high-severity improper clearing of heap memory before release vulnerability in RUGGEDCOM CROSSBOW Station Access Controller (SAC) from Siemens, with a CVSS 3.1 base score of 7.5 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. The record lists version V6.0 as the first without the flaw, so updating RUGGEDCOM CROSSBOW Station Access Controller (SAC) to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.5% 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
- Update RUGGEDCOM CROSSBOW Station Access Controller (SAC) to V6.0 or a later version.
- Update Sqlite to 3.51.1 or a later version.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Siemens | RUGGEDCOM CROSSBOW Station Access Controller (SAC) | before V6.0 | V6.0 |
| Sqlite | Sqlite | before 3.51.1 | 3.51.1 |
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
- NoneNo account or login is needed.
- 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
- NoneAvailability is not affected.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. Scored by CISA (ADP).
Official description
An information disclosure issue in the zipfileInflate function in the zipfile extension in SQLite v3.51.1 and earlier allows attackers to obtain heap memory via supplying a crafted ZIP file.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Clearing of Heap Memory Before Release
The product uses realloc() to resize buffers that contain sensitive information.
More Improper Clearing of Heap Memory Before Release vulnerabilities (CWE-244)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: poc, automatable: yes, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Patches and release notes
- sqlite.org/src/info/3d459f1fb1bd1b5eIssue Tracking
Technical write-ups (may include proof of concept)
- gist.github.com/cnwangjihe/f496393f30f5ecec5b18c8f5ab072054Exploit, Third Party Advisory
Other references
Other vulnerabilities in RUGGEDCOM CROSSBOW Station Access Controller (SAC)
- 7.8 High severity
- 9.8 Critical severity
- 7.7 High severity
- 9.8 Critical severity
- 7.5 High severity
- 7.3 High severity
Recent Improper Clearing of Heap Memory Before Release vulnerabilities
- 8.6 High severity
- 7.5 High severity
- 7.5 High severity
- 7.5 High severity
- 7.5 High severity
- 7.3 High severity
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