CVE-2019-10914
pubRsaDecryptSignedElementExt in MatrixSSL 4.0.1 Open, as used in Inside Secure TLS Toolkit, has a stack-based buffer overflow during X.509 certificate verification because of missing validation in psRsaDecryptPubExt in crypto/pubkey/rsa_pub.c.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.44%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
pubRsaDecryptSignedElementExt in MatrixSSL 4.0.1 Open, as used in Inside Secure TLS Toolkit, has a stack-based buffer overflow during X.509 certificate verification because of missing validation in psRsaDecryptPubExt in crypto/pubkey/rsa_pub.c.
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.44% probability · 73th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-295, CWE-787
- Affected
- matrixssl/matrixssl
- Source
- cve@mitre.org
EPSS 1.4% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1785Issue Tracking, Patch, Third Party Advisory
- https://github.com/matrixssl/matrixssl/issues/26Patch, Third Party Advisory
- https://github.com/matrixssl/matrixssl/releases/tag/4-0-2-openRelease Notes, Third Party Advisory
- https://www.openwall.com/lists/oss-security/2019/02/15/1
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1785Issue Tracking, Patch, Third Party Advisory
- https://github.com/matrixssl/matrixssl/issues/26Patch, Third Party Advisory
- https://github.com/matrixssl/matrixssl/releases/tag/4-0-2-openRelease Notes, Third Party Advisory
- https://www.openwall.com/lists/oss-security/2019/02/15/1
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.