3.7

CVE-2026-2967

Exploit

Cesanta Mongoose TCP Sequence Number net_builtin.c getpeer verification of source

A security vulnerability has been detected in Cesanta Mongoose up to 7.20. This affects the function getpeer of the file /src/net_builtin.c of the component TCP Sequence Number Handler. The manipulation leads to improper verification of source of a communication channel. The attack may be initiated remotely. The attack's complexity is rated as high. The exploitability is reported as difficult. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Cesanta ≫ Mongoose Version <= 7.20
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.49% 0.382
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
cna@vuldb.com 3.7 2.2 1.4
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
cna@vuldb.com 2.9 0 0
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/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
cna@vuldb.com 2.6 4.9 2.9
AV:N/AC:H/Au:N/C:N/I:N/A:P
CWE-940 Improper Verification of Source of a Communication Channel

The product establishes a communication channel to handle an incoming request that has been initiated by an actor, but it does not properly verify that the request is coming from the expected origin.

https://vuldb.com/?id.347334
Third Party Advisory
VDB Entry
https://vuldb.com/?ctiid.347334
VDB Entry
Permissions Required
https://vuldb.com/?submit.755450
Third Party Advisory
VDB Entry
https://github.com/dwBruijn/CVEs/blob/main/Mongoose/tcp_rst.md
Third Party Advisory
Exploit
https://github.com/dwBruijn/CVEs/blob/main/Mongoose/tcp_rst.md#poc
Third Party Advisory
Exploit