CVE-2021-42872: totolink ex1200t_firmware OS Command Injection
CVSS: 10.0v2.0HighModified
Published 31-05-2022Last modified 09-07-2026
Vulnerability summary
CVE-2021-42872 is a high (CVSS 10.0) OS Command Injection vulnerability in totolink ex1200t_firmware. EPSS estimates a 6.49% chance of exploitation in the next 30 days, higher than 93.7% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
10.0/10
010
High · v2.0 (NVD)EPSS score
6.49%
0%100%
Low · -0.08 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Timeline
- 31-05-2022PublishedVulnerability first disclosed.
- 09-07-2026Last modifiedVulnerability information updated.
Description
TOTOLINK EX1200T V4.1.2cu.5215 is affected by a command injection vulnerability that can remotely execute arbitrary code.
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 10.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:C/I:C/A:CSourcesSingle source
EPSS trend
Probability
6.49%
Chance of exploitation in the next 30 days
Percentile
94%
Versus all other CVEs
30-day change
-0.08 pp
From 6.58% on 21-09-2026
21-09-202621-10-2026
EPSS score6.49%
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
2 links- totolink.netVendor Advisory