XBC-DN32U: Access of Memory Location After End of Buffer
CVE-2023-0103 is a high-severity access of memory location after end of buffer vulnerability in XBC-DN32U from Ls-electric, 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. Affected XBC-DN32U versions: Operating System Version 01.80. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.66% chance of exploitation within 30 days, higher than 52% of scored CVEs.
High severity with no evidence of exploitation so far.
What to do
- Check which version of XBC-DN32U 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.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| LS Electric | XBC-DN32U | Operating System Version 01.80 | Not stated |
| Ls-electric | Xbc-dn32u Firmware | 01.80 | 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
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- NoneNo data is disclosed.
- Integrity
- NoneNothing can be modified.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 7.5 | High | CNA (hq.dhs.gov) |
| CVSS 3.1 | 7.5 | High | NVD |
Official description
If an attacker were to access memory locations of LS ELECTRIC XBC-DN32U with operating system version 01.80 that are outside of the communication buffer, the device stops operating. This could allow an attacker to cause a denial-of-service condition.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Access of Memory Location After End of Buffer
The product reads or writes to a buffer using an index or pointer that references a memory location after the end of the buffer.
More Access of Memory Location After End of Buffer vulnerabilities (CWE-788)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
Other vulnerabilities in XBC-DN32U
- 9.8 Critical severity
- 7.5 High severity
- 9.8 Critical severity
- 7.5 High severity
- 9.1 Critical severity
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