CVE-2021-42890: totolink ex1200t_firmware OS Command Injection
CVSS: 9.8v3.1CriticalModified
Published 03-06-2022Last modified 04-08-2024
Vulnerability summary
CVE-2021-42890 is a critical (CVSS 9.8) OS Command Injection vulnerability in totolink ex1200t_firmware. EPSS estimates a 1.90% chance of exploitation in the next 30 days, higher than 79.5% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
9.8/10
010
Critical · v3.1 (NVD)EPSS score
1.90%
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
TOTOLINK EX1200T V4.1.2cu.5215 contains a remote command injection vulnerability in function NTPSyncWithHost of the file system.so which can control hostTime to attack.
CVSS metrics
2 scores · 1 source · 2 versionsCritical 9.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesSingle source
High 7.5Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
1.90%
Chance of exploitation in the next 30 days
Percentile
80%
Versus all other CVEs
30-day change
0.00 pp
From 1.90% on 21-09-2026
21-09-202621-10-2026
EPSS score1.90%
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_hosttime_rce.mdX Refsource MISCExploitThird Party Advisory