High severity · published Apr 8, 2024
CVE-2024-31809
TOTOLINK EX200 V4.0.3c.7646_B20201211 was discovered to contain a remote code execution (RCE) vulnerability via the FileName parameter in the setUpgradeFW function
8.8
CVSS
1%
EPSS
No
On KEV
Description
TOTOLINK EX200 V4.0.3c.7646_B20201211 was discovered to contain a remote code execution (RCE) vulnerability via the FileName parameter in the setUpgradeFW function.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 62% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EF
Ex200 Firmware · Totolink
4.0.3c.7646_b20201211 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-31809
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-31809
Exploit
https://github.com/4hsien/CVE-vulns/blob/main/TOTOLINK/EX200/CI_4_setUpgradeFW/CI.md
More from Ex200 Firmware
10.0
CVE-2026-114383
TOTOLINK EX200 wireless.so cstecgi.cgi setWiFiAclAddConfig stack-based overflow
10.0
CVE-2026-114382
TOTOLINK EX200 lan.so cstecgi.cgi setStaticDhcpConfig stack-based overflow
9.8
CVE-2024-31810
TOTOLINK EX200 V4.0.3c.7646_B20201211 was discovered to contain a hardcoded password for root at /etc/shadow.sample
9.8
CVE-2024-31807
TOTOLINK EX200 V4.0.3c.7646_B20201211 was discovered to contain a remote code execution (RCE) vulnerability via the hostTime parameter in the NTPSyncWithHost function
9.8
CVE-2021-43711
The downloadFlile.cgi binary file in TOTOLINK EX200 V4.0.3c.7646_B20201211 has a command injection vulnerability when receiving GET parameters