Totolink N200RE V5 cstecgi.cgi session expiration

published 2024-01-26 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-16721

cvss: 3.7; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.7%; EPSS 0.7% chance of exploitation in 30 days, percentile 51%
public exploits: 0; none known

A vulnerability was found in Totolink N200RE V5 9.3.5u.6255_B20211224. It has been classified as problematic. Affected is an unknown function of the file /cgi-bin/cstecgi.cgi. The manipulation leads to session expiration. It is possible to launch the attack remotely. The complexity of an attack is rather high. The exploitability is told to be difficult. The exploit has been disclosed to the public and may be used. VDB-252186 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 2 y ago (2024-08-23)

Exploit prediction

0.66% chance of exploitation in the next 30 days, higher than 51% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

drive.google.com https://drive.google.com/file/d/1oWAGbmDtHDIUN1WSRAh4ZnuzHOuvTU4T/view?usp=sharing referenced PoC, tagged "exploit" by a source, unverified
youtu.be https://youtu.be/b0tU2CiLbnU referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	3.1	3.7	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
CNA	3.0	3.7	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
CNA	2.0	2.6	AV:N/AC:H/Au:N/C:P/I:N/A:N
NVD	3.1	4.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Affected products

Totolink N200RE V5

Classification

Weakness

CWE-613 DEPRECATED: Insufficient Session Expiration

References

drive.google.com /file/d/1oWAGbmDtHDIUN1WSRAh4ZnuzHOuvTU4T/view?usp=sharing
exploit, third-party-advisory
youtu.be /b0tU2CiLbnU
media-coverage, exploit, third-party-advisory
vuldb.com /?id.252186
vdb-entry, technical-description, third-party-advisory
vuldb.com /?ctiid.252186
signature, permissions-required, third-party-advisory
vuldb.com /?submit.269679
third-party-advisory

Sources

CVE List CVE-2024-0942
NVD CVE-2024-0942

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.

Summary