CVE-2026-2967
Last modified
CVE-2026-2967 is a low-severity vulnerability rated 2.9/10 on the CVSS scale. 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. EPSS estimates a 0.49% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
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
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Cesanta | Mongoose | <= 7.20 |
References
- https://github.com/dwBruijn/CVEs/blob/main/Mongoose/tcp_rst.mdExploit, Third Party Advisory
- https://github.com/dwBruijn/CVEs/blob/main/Mongoose/tcp_rst.md#pocExploit, Third Party Advisory
- https://vuldb.com/?ctiid.347334Permissions Required, VDB Entry
- https://vuldb.com/?id.347334Third Party Advisory, VDB Entry
- https://vuldb.com/?submit.755450Third Party Advisory, VDB Entry
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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