HOMEVULNERABILITIESCVE-2026-3229
MEDIUM

CVE-2026-3229

CWE-122Published: March 19, 2026· Updated: Mar 26, 2026

5.5
CVSS v3.1
EPSS:0.01%probability of exploitation in 30 daysPercentile:1.4th

Official Description

An integer overflow vulnerability existed in the static function wolfssl_add_to_chain, that caused heap corruption when certificate data was written out of bounds of an insufficiently sized certificate buffer. wolfssl_add_to_chain is called by these API: wolfSSL_CTX_add_extra_chain_cert, wolfSSL_CTX_add1_chain_cert, wolfSSL_add0_chain_cert. These API are enabled for 3rd party compatibility features: enable-opensslall, enable-opensslextra, enable-lighty, enable-stunnel, enable-nginx, enable-haproxy. This issue is not remotely exploitable, and would require that the application context loading certificates is compromised.

NVD Source

Technical Analysis

CVE-2026-3229 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 5.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Vendors & Products

wolfssl1 product
wolfssl
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
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Official Patches & Advisories

PATCHhttps://github.com/wolfSSL/wolfssl/pull/9827

All References (1)

→
https://github.com/wolfSSL/wolfssl/pull/9827Patch · Issue Tracking

Quick Facts

CVE IDCVE-2026-3229
CVSS Score5.5 / 10
SeverityMEDIUM
WeaknessCWE-122
CISA KEVNo
EPSS (30d)0.01%
Affected1 vendor
PublishedMar 19, 2026

Related CVEs (CWE-122)

CVE-2026-46752
10.0
CVE-2026-44050
9.9
CVE-2026-32945
9.8
CVE-2026-28780
9.8
CVE-2006-10003
9.8
CVE-2026-41096
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-3229 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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