CVE-2019-1563 is a Bleichenbacher padding oracle vulnerability affecting OpenSSL versions 1.1.1-1.1.1c, 1.1.0-1.1.0k, and 1.0.2-1.0.2s. An attacker can recover a CMS/PKCS7 transported encryption key or decrypt RSA-encrypted messages by observing decryption success/failure notifications after sending numerous messages. The vulnerability has a CVSS score of 3.7 (LOW), indicating a network-based attack with high complexity and low impact on confidentiality. There is no evidence of active exploitation, public exploit code, or significant community discussion, and it is not listed in CISA's KEV catalog.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 1.0.2, <= 1.0.2sCPE matchmatch criteria | cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* | ||
>= 1.1.0, <= 1.1.0kCPE matchmatch criteria | cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* | ||
>= 1.1.1, <= 1.1.1cCPE matchmatch criteria | cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
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The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.