CVE-2026-3229
published 2026-03-19CVE-2026-3229: An integer overflow vulnerability existed in the static function wolfssl_add_to_chain, that caused heap corruption when certificate data was written out of…
PriorityP423medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.06%
0.0th percentile
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.
Affected
6 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | wolfssl | < wolfssl 5.9.0-0.1 (forky) | wolfssl 5.9.0-0.1 (forky) |
| msrc | azl3_mariadb_10.11.16-1_on_azure_linux_3.0 | — | — |
| msrc | cbl2_mariadb_10.6.24-1_on_cbl_mariner_2.0 | — | — |
| wofssl | wolfssl | < 5.9.0 | 5.9.0 |
| wolfssl | wolfssl | < 5.9.0 | 5.9.0 |
| wolfssl | wolfssl | >= 0 < 5.9.0-0.1 | 5.9.0-0.1 |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
nvdv4.01.2LOWCVSS: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/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:Green
osv1.2LOW
vendor_debian1.2LOW
vendor_msrc1.2LOW
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
Microsoft
Integer Overflow in Certificate Chain Allocation
vendor_msrc·2026-03-10·CVSS 1.2
CVE-2026-3229 [LOW] CWE-122 Integer Overflow in Certificate Chain Allocation
Integer Overflow in Certificate Chain Allocation
Mariner: Mariner
wolfSSL: wolfSSL
Customer Action Required: Yes
Debian
CVE-2026-3229: wolfssl - An integer overflow vulnerability existed in the static function wolfssl_add_to_...
vendor_debian·2026·CVSS 1.2
CVE-2026-3229 [LOW] CVE-2026-3229: wolfssl - An integer overflow vulnerability existed in the static function wolfssl_add_to_...
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.
Scope: local
bookworm: open
bullseye: open
forky: resolved (fixed in 5.9.0-0.1)
sid: resolved (fixed in 5.9.0-0.1)
trixie: open
OSV
CVE-2026-3229: An integer overflow vulnerability existed in the static function wolfssl_add_to_chain, that caused heap corruption when certificate data was written o
osv·2026-03-19·CVSS 1.2
CVE-2026-3229 [LOW] CVE-2026-3229: An integer overflow vulnerability existed in the static function wolfssl_add_to_chain, that caused heap corruption when certificate data was written o
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.
GHSA
GHSA-6p64-86qj-33gc: An integer overflow vulnerability existed in the static function wolfssl_add_to_chain, that caused heap corruption when certificate data was written o
ghsa_unreviewed·2026-03-19
CVE-2026-3229 [LOW] CWE-122 GHSA-6p64-86qj-33gc: An integer overflow vulnerability existed in the static function wolfssl_add_to_chain, that caused heap corruption when certificate data was written o
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.
No detection rules found.
No public exploits indexed.
2026-03-19
Published