CVE-2026-2966A weakness has been identified in Cesanta Mongoose up to 7.20.
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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
- 3.7 LOW (v3.1, NVD)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
- Weakness (CWE)
- CWE-310, CWE-330
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Jun 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
cesanta mongoose cesanta:mongoose | through 7.20 | NVD |
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
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.