CVE-2021-42892: totolink ex1200t_firmware Use of Hard-coded Credentials
CVSS: 5.0v2.0MediumModified
Published 03-06-2022Last modified 04-08-2024
Vulnerability summary
CVE-2021-42892 is a medium (CVSS 5.0) Use of Hard-coded Credentials vulnerability in totolink ex1200t_firmware. EPSS estimates a 0.73% chance of exploitation in the next 30 days, higher than 53.8% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
5.0/10
010
Medium · v2.0 (NVD)EPSS score
0.73%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Timeline
- 03-06-2022PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
In TOTOLINK EX1200T V4.1.2cu.5215, an attacker can start telnet without authorization because the default username and password exists in the firmware.
CVSS metrics
2 scores · 1 source · 2 versionsMedium 4.3Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:NSourcesSingle source
Medium 5.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:N/I:P/A:NSourcesSingle source
EPSS trend
Probability
0.73%
Chance of exploitation in the next 30 days
Percentile
54%
Versus all other CVEs
30-day change
0.00 pp
From 0.73% on 21-09-2026
21-09-202621-10-2026
EPSS score0.73%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundVuln
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Totolink1 product
- ex1200t_firmware4.1.2cu.5215
1 vendor · 1 product
References
1 links- github.com/p1Kk/vuln/blob/main/totolink_ex1200t_telnet_default.mdX Refsource MISCExploitThird Party Advisory