CVE-2026-4497
HIGHTotolink WA300 cstecgi.cgi recvUpgradeNewFw os command injection
Title source: cnaDescription
A vulnerability was determined in Totolink WA300 5.2cu.7112_B20190227. Affected by this issue is the function recvUpgradeNewFw of the file /cgi-bin/cstecgi.cgi. This manipulation causes os command injection. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized.
References (6)
Core 6
Core References
Vdb Entry, Technical Description vdb-entry
technical-description
VDB-352046 | Totolink WA300 cstecgi.cgi recvUpgradeNewFw os command injection
https://vuldb.com/?id.352046
Signature, Permissions Required signature
permissions-required
VDB-352046 | CTI Indicators (IOB, IOC, TTP, IOA)
https://vuldb.com/?ctiid.352046
Third Party Advisory third-party-advisory
Submit #773875 | Totolink WA300 V5.2cu.7112_B20190227 OS Command Injection
https://vuldb.com/?submit.773875
Issue Tracking issue-tracking
https://github.com/hellonestor/killallbug/issues/1
Patch exploit
patch
https://github.com/user-attachments/files/25790616/Unauthenticated.Remote.Code.Execution.in.TOTOLINK.WA300.via.Command.Injection.in.recvUpgradeNewFw.zip
Product product
https://www.totolink.net/
Scores
CVSS v3
7.3
EPSS
0.0191
EPSS Percentile
77.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-77
CWE-78
Status
published
Products (2)
Totolink/WA300
5.2cu.7112_B20190227
totolink/wa300_firmware
5.2cu.7112_b20190227
Published
Mar 20, 2026
Tracked Since
Mar 21, 2026