CVE-2021-38456: moxa mxview Use of Hard-coded Password
CVSS: 9.8v3.1CriticalModified
Published 12-10-2021Last modified 17-09-2024
Vulnerability summary
CVE-2021-38456 is a critical (CVSS 9.8) Use of Hard-coded Password vulnerability in moxa mxview. EPSS estimates a 1.18% chance of exploitation in the next 30 days, higher than 67.3% of scored vulnerabilities.
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)EPSS score
1.18%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 12-10-2021PublishedVulnerability first disclosed.
- 17-09-2024Last modifiedVulnerability information updated.
Description
A use of hard-coded password vulnerability in the Moxa MXview Network Management software Versions 3.x to 3.2.2 may allow an attacker to gain access through accounts using default passwords
CVSS metrics
3 scores · 2 sources · 2 versionsCritical 9.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesAll 2 agree
- NVDNIST9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
High 7.5Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
1.18%
Chance of exploitation in the next 30 days
Percentile
67%
Versus all other CVEs
30-day change
0.00 pp
From 1.18% on 20-09-2026
20-09-202620-10-2026
EPSS score1.18%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-259Use of Hard-coded PasswordThe product contains a hard-coded password, which it uses for its own inbound authentication or for outbound communication to external components.
- CWE-798Use of Hard-coded CredentialsThe product contains hard-coded credentials, such as a password or cryptographic key.
Affected systems
Moxa2 products
- mxview≥ 3.0, ≤ 3.2.2
- mxview network management software≥ 3.x, ≤ 3.2.2
1 vendor · 2 products
References
1 links
us-cert.cisa.gov/ics/advisories/icsa-21-278-03X Refsource MISCThird Party AdvisoryUS Government Resource