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No exploitation reportedFix available

CVE-2025-65502

No exploitation reported by the sources we read.

  • Published2025-11-24
  • Fixed in7.2
  • WeaknessCWE-476

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

Null pointer dereference in add_ca_certs() in Cesanta Mongoose before 7.2 allows remote attackers to cause a denial of service via TLS initialization where SSL_CTX_get_cert_store() returns NULL.

Timeline

dates in UTC
  1. 2025-11-2414:15CVE publishedNVD

Versions per branch

NVD
Cesanta mongoose
BranchAffectedFixed in
7.2< 7.27.2

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

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

  • mongooseUbuntu:26.10all versions · no fixed version listed
  • swupdateUbuntu:25.10all versions · no fixed version listed
  • swupdateUbuntu:24.04:LTSall versions · no fixed version listed
  • swupdateUbuntu:22.04:LTSall versions · no fixed version listed
  • swupdateDebian:14all versions · fixed in 2025.12+dfsg-1
  • swupdateDebian:13all versions · no fixed version listed
  • swupdateDebian:12all versions · no fixed version listed

Full record on NVD

Fix

  1. Update Cesanta mongoose to 7.2

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:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Published
2025-11-24
Last Modified
2026-11-05
NVD status
Analyzed
GitHub Advisory
GHSA-hp7w-j9mx-8vpj

Frequently asked questions

What is CVE-2025-65502?

Null pointer dereference in add_ca_certs() in Cesanta Mongoose before 7.2 allows remote attackers to cause a denial of service via TLS initialization where SSL_CTX_get_cert_store() returns NULL.

Is CVE-2025-65502 actively exploited?

Active exploitation of CVE-2025-65502 has not been confirmed. Its EPSS score was 0.3% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2025-65502?

CVE-2025-65502 has a CVSS v3 base score of 4.3 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L.

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Sources for this record