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Fencer Vulns
critical 9.8

CVE-2023-36955 json

TOTOLINK CP300+ <=V5.2cu.7594_B20200910 was discovered to contain a stack overflow via the File parameter in the function UploadCustomModul…

published 2023-10-16 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-40875

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 58%
public exploits
0
none known

Summary

TOTOLINK CP300+ <=V5.2cu.7594_B20200910 was discovered to contain a stack overflow via the File parameter in the function UploadCustomModule.

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
total
Assessed
2 y ago

Exploit prediction

0.85% chance of exploitation in the next 30 days, higher than 58% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/Archerber/bug_submit/blob/main/TOTOLINK/CP300%2B_4.md referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • totolink cp300\+_firmware

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.