CVEvulnerability
CVE-2026-2966
2.9 LOW
Official page ↗
- Status
- Analyzed
- Published
- 2026-02-23
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 2.9 LOW — CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/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
- CVSS 3.1 ([email protected])
- 3.7 LOW — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
- CVSS 2.0 ([email protected])
- 2.6 LOW — AV:N/AC:H/Au:N/C:N/I:P/A:N
- Weaknesses
- CWE-310, CWE-330
Description
A weakness has been identified in Cesanta Mongoose up to 7.20. The impacted element is the function mg_sendnsreq of the file /src/dns.c of the component DNS Transaction ID Handler. Executing a manipulation of the argument random can lead to insufficiently random values. The attack can be launched remotely. The attack requires a high level of complexity. The exploitability is regarded as difficult. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Affected configurations
• cesanta mongoose (<= 7.20)
Related
Weakness · not in database (1)
Weakness · CWE (1)
- CWE-330 Use of Insufficiently Random Values weakness
References
- https://github.com/dwBruijn/CVEs/blob/main/Mongoose/mg_sendnsreq.md Exploit, Third Party Advisory
- https://github.com/dwBruijn/CVEs/blob/main/Mongoose/mg_sendnsreq.md#poc Exploit, Third Party Advisory
- https://vuldb.com/?ctiid.347333 Permissions Required, VDB Entry
- https://vuldb.com/?id.347333 Third Party Advisory, VDB Entry
- https://vuldb.com/?submit.755304 Third Party Advisory, VDB Entry