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A flaw was found in all released versions of m2crypto where they are vulnerable to Bleichenbacher timing attacks in the RSA decryption API via the timed processing of valid PKCS#1 v1.5 Ciphertext. The highest threat from this vulnerability is to confidentiality.
| Reporter | Title | Published | Views | Family All 57 |
|---|---|---|---|---|
 | CVE-2020-25657 affecting package m2crypto for versions less than 0.38.0-3 | 31 Aug 202206:17 | – | cbl_mariner |
| CVE-2020-25657 affecting package m2crypto 0.35.2-8 | 12 Jan 202509:15 | – | cbl_mariner |
| CVE-2020-25657 affecting package m2crypto for versions less than 0.38.0-3 | 19 Mar 202417:21 | – | cbl_mariner |
 | CVE-2020-25657 | 5 Feb 202423:56 | – | circl |
 | CVE-2020-25657 | 12 Jan 202114:33 | – | cve |
 | CVE-2020-25657 | 12 Jan 202114:33 | – | cvelist |
 | CVE-2020-25657 | 12 Jan 202114:33 | – | debiancve |
 | EUVD-2020-18321 | 7 Oct 202500:30 | – | euvd |
 | m2crypto Bleichenbacher timing attack - incomplete fix for CVE-2020-25657 | 5 Feb 202421:30 | – | github |
 | CBL Mariner 2.0 Security Update: m2crypto (CVE-2020-25657) | 20 Mar 202300:00 | – | nessus |
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18 Feb 2026 09:05Current
6.6Medium risk
Vulners AI Score6.6
CVSS 24.3
CVSS 3.15.9
EPSS0.00307