CVE-2026-2966
lowpriority · track · 0OT risk · elevatedEPSS 0.004 · 38 %ileEUUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 1.7–6.3
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (22)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (15)
External citations — patches, advisories, analysis.
- https://github.com/dwBruijn/CVEs/blob/main/Mongoose/mg_sendnsreq.mdcnnvd
- https://github.com/dwBruijn/CVEs/blob/main/Mongoose/mg_sendnsreq.md#poccnnvd
- https://vuldb.com/?ctiid.347333cnnvd
- https://vuldb.com/?id.347333cnnvd
- https://vuldb.com/?submit.755304cnnvd
- https://github.com/dwBruijn/CVEs/blob/main/Mongoose/mg_sendnsreq.mdenisa_euvd
- https://github.com/dwBruijn/CVEs/blob/main/Mongoose/mg_sendnsreq.md#pocenisa_euvd
- https://vuldb.com/?ctiid.347333enisa_euvd
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