CVE-2023-40544
Westermo Lynx Cleartext Transmission of Sensitive Information
An attacker with access to the network where the affected devices are located could maliciously actions to obtain, via a sniffer, sensitive information exchanged via TCP communications.
Attack profile
How easy it is to exploit
- Attack vector
- Adjacent network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Westermo Lynx Cleartext Transmission of Sensitive Information
An attacker with access to the network where the affected devices are located could maliciously actions to obtain, via a sniffer, sensitive information exchanged via TCP communications.
- Record
CVE-2023-40544- CVSS 3.1
- 5.7 Medium
CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N - Weakness
- CWE-319
- Updated
- 2026-11-02
EUVDEUVD-2023-45115
An attacker with access to the network where the affected devices are located could maliciously actions to obtain, via a sniffer, sensitive information exchanged via TCP communications.
- Record
EUVD-2023-45115- CVSS 3.1
- 5.7 Medium
CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-7jrg-2597-p2hc
An attacker with access to the network where the affected devices are located could...
An attacker with access to the network where the affected devices are located could maliciously actions to obtain, via a sniffer, sensitive information exchanged via TCP communications.
- Record
GHSA-7jrg-2597-p2hc- CVSS 3.1
- 5.7 Medium
CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N - Weakness
- CWE-319
- Updated
- 2026-11-02
NVD
An attacker with access to the network where the affected devices are located could maliciously actions to obtain, via a sniffer, sensitive information exchanged via TCP communications.
- Record
CVE-2023-40544- CVSS 3.1
- 5.7 Medium
CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N - Weakness
- CWE-319
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-40544 is a medium vulnerability (CVSS 5.7) in Westermo Lynx, published February 6, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.17%, the 6th percentile. No source names a fixed version.