CVE-2025-44039 json
CP-XR-DE21-S -4G Router Firmware version 1.031.022 was discovered to contain insecure protections for its UART console.
published 2025-05-13 17 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-14395
- cvss
- 5.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 13%
- public exploits
- 0
- none known
Summary
CP-XR-DE21-S -4G Router Firmware version 1.031.022 was discovered to contain insecure protections for its UART console. This vulnerability allows local attackers to connect to the UART port via a serial connection, read all boot sequence, and revealing internal system details and sensitive information without any authentication.
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 17 mo ago
Exploit prediction
0.22% chance of exploitation in the next 30 days, higher than 13% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/Yashodhanvivek/CP-XR-DE21-S--4G-Router-Vulnerabilities/blob/main/input.md referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 5.1 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
| CNA | 3.1 | 5.1 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
Classification
- Weakness
-
- CWE-306 Missing Authentication for Critical Functionality
References
-
github.com
/Yashodhanvivek/CP-XR-DE21-S--4G-Router-Vulnerabilities/blob/main/input.md
exploit, third-party-advisory
Sources
- CVE List CVE-2025-44039
- NVD CVE-2025-44039
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