CVE-2018-20388
Comtrend CM-6200un 123.447.007 and CM-6300n 123.553mp1.005 devices allow remote attackers to...
Comtrend CM-6200un 123.447.007 and CM-6300n 123.553mp1.005 devices allow remote attackers to discover credentials via iso.3.6.1.4.1.4491.2.4.1.1.6.1.1.0 and iso.3.6.1.4.1.4491.2.4.1.1.6.1.2.0 SNMP requests.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
Comtrend CM-6200un 123.447.007 and CM-6300n 123.553mp1.005 devices allow remote attackers to discover credentials via iso.3.6.1.4.1.4491.2.4.1.1.6.1.1.0 and iso.3.6.1.4.1.4491.2.4.1.1.6.1.2.0 SNMP requests.
- Record
CVE-2018-20388- CVSS 3.0
- 9.8 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:N - Weakness
- CWE-522
- Updated
- 2026-11-02
CVE List No score
Comtrend CM-6200un 123.447.007 and CM-6300n 123.553mp1.005 devices allow remote attackers to discover credentials via iso.3.6.1.4.1.4491.2.4.1.1.6.1.1.0 and iso.3.6.1.4.1.4491.2.4.1.1.6.1.2.0 SNMP requests.
- Record
CVE-2018-20388- Updated
- 2026-11-02
EUVDEUVD-2018-12946 No score
Comtrend CM-6200un 123.447.007 and CM-6300n 123.553mp1.005 devices allow remote attackers to discover credentials via iso.3.6.1.4.1.4491.2.4.1.1.6.1.1.0 and iso.3.6.1.4.1.4491.2.4.1.1.6.1.2.0 SNMP requests.
- Record
EUVD-2018-12946- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-8rw6-gj69-wxhc
Comtrend CM-6200un 123.447.007 and CM-6300n 123.553mp1.005 devices allow remote attackers to...
Comtrend CM-6200un 123.447.007 and CM-6300n 123.553mp1.005 devices allow remote attackers to discover credentials via iso.3.6.1.4.1.4491.2.4.1.1.6.1.1.0 and iso.3.6.1.4.1.4491.2.4.1.1.6.1.2.0 SNMP requests.
- Record
GHSA-8rw6-gj69-wxhc- CVSS 3.0
- 9.8 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-522
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2018-20388 is a critical vulnerability (CVSS 9.8) in Comtrend Cm-6200un Firmware, published December 23, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.51%, the 74th percentile. No source names a fixed version.
