CVE-2026-2966

LOW EPSS 29.8%
Published Feb 23, 20264mo ago · Modified Jun 17, 20262w ago
2.9 CVSS 4.0
Low
Find Similar
Published Feb 23, 2026 4mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
2.9
Exploitability
—
Impact
—
Vector string
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
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
29.8% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 2

CWE-310
CWE-330

Affected Products 1

VendorProductVersionRange
cesantamongoose* ≤7.20

References 5

  • github.com https://github.com/dwBruijn/CVEs/blob/main/Mongoose/mg_sendnsreq.md
    ExploitThird Party Advisory
  • github.com https://github.com/dwBruijn/CVEs/blob/main/Mongoose/mg_sendnsreq.md#poc
    ExploitThird Party Advisory
  • vuldb.com https://vuldb.com/?ctiid.347333
    Permissions RequiredVDB Entry
  • vuldb.com https://vuldb.com/?id.347333
    Third Party AdvisoryVDB Entry
  • vuldb.com https://vuldb.com/?submit.755304
    Third Party AdvisoryVDB Entry

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.