CVE-2023-3336: moxa tn-5900_firmware Observable Response Discrepancy
CVSS: 5.3v3.1MediumModified
Published 05-07-2023Last modified 20-11-2024
Vulnerability summary
CVE-2023-3336 is a medium (CVSS 5.3) Observable Response Discrepancy vulnerability in moxa tn-5900_firmware. EPSS estimates a 0.61% chance of exploitation in the next 30 days, higher than 48.3% of scored vulnerabilities.
CVSS score
5.3/10
010
Medium · v3.1 (CVE.org)EPSS score
0.61%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 05-07-2023PublishedVulnerability first disclosed.
- 20-11-2024Last modifiedVulnerability information updated.
Description
TN-5900 Series version 3.3 and prior versions is vulnearble to user enumeration vulnerability. The vulnerability may allow a remote attacker to determine whether a user is valid during password recovery through the web login page and enable a brute force attack with valid users.
CVSS metrics
2 scores · 2 sources · 1 versionMedium 5.3Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NSourcesAll 2 agree
- NVDNIST5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS trend
Probability
0.61%
Chance of exploitation in the next 30 days
Percentile
48%
Versus all other CVEs
30-day change
0.00 pp
From 0.61% on 21-09-2026
21-09-202621-10-2026
EPSS score0.61%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-204Observable Response DiscrepancyThe product provides different responses to incoming requests in a way that reveals internal state information to an unauthorized actor outside of the intended control sphere.
- CWE-203Observable DiscrepancyThe product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor.
Affected systems
Moxa2 products
- tn-5900_firmware≤ 3.3
- tn-5900 series≥ 1.0, ≤ 3.3
1 vendor · 2 products
References
1 links- www.moxa.com/en/…Vendor Advisory