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CVE-2026-3229VulnerabilityPublished Updated

Certificate Chain Allocation · Integer Overflow

Affects MicrosoftSource GCVE Database

0
Authoritative record:CVE-2026-3229· Low 1.2

Public exploit available · CVSS 1.2 Low : upgrade to 5.9.0 as a priority.

Data as of 27 Oct 2026, 00:09 UTC

CVSS 4.0 base score
1.2Low
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 5.9.0
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/U:Green

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 19 Mar 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: evidence found.

    CVSS exploit maturity: proof of concept public

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade wolfSSL to 5.9.0.

Affected software

ProductAffectedFixed in
wofSSLwolfSSLAffected
  • <5.9.0
Fixed in
  • 5.9.0
GitHubwolfssl/wolfsslpkg:github/wolfssl/wolfsslOther threatsAffected
  • =0
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

Description

An integer overflow vulnerability exists in the certificate chain allocation process in Microsoft software versions 2.0 and 3.0. This flaw could potentially lead to memory corruption issues. No CVSS score or detailed impact information is provided.

References

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