CVE-2026-2966
Last modified
CVE-2026-2966 is a low-severity vulnerability rated 2.9/10 on the CVSS scale. 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. EPSS estimates a 0.38% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
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
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Cesanta | Mongoose | <= 7.20 |
References
- https://github.com/dwBruijn/CVEs/blob/main/Mongoose/mg_sendnsreq.mdExploit, Third Party Advisory
- https://github.com/dwBruijn/CVEs/blob/main/Mongoose/mg_sendnsreq.md#pocExploit, Third Party Advisory
- https://vuldb.com/?ctiid.347333Permissions Required, VDB Entry
- https://vuldb.com/?id.347333Third Party Advisory, VDB Entry
- https://vuldb.com/?submit.755304Third Party Advisory, VDB Entry
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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