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Public proof of conceptFix available

CVE-2023-2905

A public proof of concept exists; no exploitation attested.

  • Published2023-08-09
  • WeaknessCWE-122 · CWE-787

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Due to a failure in validating the length of a provided MQTT_CMD_PUBLISH parsed message with a variable length header, Cesanta Mongoose, an embeddable web server, version 7.10 is susceptible to a heap-based buffer overflow vulnerability in the default configuration. Version 7.9 and prior does not appear to be vulnerable. This issue is resolved in version 7.11.

Timeline

dates in UTC
  1. 2023-08-0905:15CVE publishedNVD

Versions per branch

NVD
Cesanta mongoose
BranchAffectedFixed in
7.10= 7.10no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As AHA, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • Cesanta Mongooseother versions: not affected
    Affected
    • = 7.10no fix stated

    Not affected = 7.11

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2023-08-09

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • swupdateUbuntu:24.04:LTSall versions · no fixed version listed
  • swupdateUbuntu:22.04:LTSall versions · no fixed version listed
  • swupdateDebian:14all versions · fixed in 2024.12+dfsg-1
  • swupdateDebian:13all versions · fixed in 2024.12+dfsg-1
  • swupdateDebian:12all versions · no fixed version listed

Vendor advisories

  • CVE-2023-2905 Red Hat Product Security

    mongoose: MQTT message parsing heap overflow

Full record on NVD

Fix

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2023-08-09
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-pv78-3m65-h826

Frequently asked questions

What is CVE-2023-2905?

Due to a failure in validating the length of a provided MQTT_CMD_PUBLISH parsed message with a variable length header, Cesanta Mongoose, an embeddable web server, version 7.10 is susceptible to a heap-based buffer overflow vulnerability in the default configuration. Version 7.9 and prior does not appear to be vulnerable. This issue is resolved in version 7.11.

Is CVE-2023-2905 actively exploited?

A proof-of-concept exploit exists for CVE-2023-2905, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2023-2905?

CVE-2023-2905 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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Sources for this record