CVE-2026-7748
published 2026-05-04CVE-2026-7748: A weakness has been identified in Totolink N300RH 3.2.4-B20220812. Affected by this issue is the function setUpgradeFW of the file /cgi-bin/cstecgi.cgi of the…
PriorityP264high8.8CVSS 3.1
AVNACLPRLUINSUCHIHAH
EPSS
0.46%
37.2th percentile
A weakness has been identified in Totolink N300RH 3.2.4-B20220812. Affected by this issue is the function setUpgradeFW of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. Executing a manipulation of the argument FileName can lead to buffer overflow. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks.
Affected
1 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| totolink | n300rh | — | — |
CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv4.07.4HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
nvdv2.09.0CRITICALAV:N/AC:L/Au:S/C:C/I:C/A:C
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GHSA
GHSA-586v-9hf5-74vw: A weakness has been identified in Totolink N300RH 3
ghsa_unreviewed·2026-05-04
CVE-2026-7748 [HIGH] CWE-119 GHSA-586v-9hf5-74vw: A weakness has been identified in Totolink N300RH 3
A weakness has been identified in Totolink N300RH 3.2.4-B20220812. Affected by this issue is the function setUpgradeFW of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. Executing a manipulation of the argument FileName can lead to buffer overflow. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks.
VulDB
Totolink N300RH 3.2.4-B20220812 POST Request /cgi-bin/cstecgi.cgi setUpgradeFW FileName buffer overflow
vuldb·2026-05-03
CVE-2026-7748 [CRITICAL] Totolink N300RH 3.2.4-B20220812 POST Request /cgi-bin/cstecgi.cgi setUpgradeFW FileName buffer overflow
A vulnerability, which was classified as critical, was found in Totolink N300RH 3.2.4-B20220812. Affected by this issue is the function setUpgradeFW of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. Executing a manipulation of the argument FileName can lead to buffer overflow.
This vulnerability is tracked as CVE-2026-7748. The attack can be launched remotely. Moreover, an exploit is present.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-05-04
Published