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CVE-2020-28052An issue was discovered in Legion of the Bouncy Castle BC Java 1.65 and 1.66. The OpenBSDBCrypt.checkPassword utility method compared…
- 8.1HighCVSS base score
- 7.2%Exploitation in 30 daysEPSS · top 5.6% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
An issue was discovered in Legion of the Bouncy Castle BC Java 1.65 and 1.66. The OpenBSDBCrypt.checkPassword utility method compared incorrect data when checking the password, allowing incorrect passwords to indicate they were matching with previously hashed ones that were different.
Timeline
ID reserved
By mitre
- 46 days later
· 46 days later
Published
- 4 years later
· 4 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | High8.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 7.2% · top 5.6% of all CVEs (12 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.1.
Affected products
n/a
- affected n/a
Affected packages
Affected packages7
From reviewed advisories of the GitHub Advisory Database.
- Mavenorg.bouncycastle:bcprov-ext-jdk15onGHSA-73xv-w5gp-frxh (opens in a new tab)
- Mavenorg.bouncycastle:bcprov-ext-jdk16GHSA-73xv-w5gp-frxh (opens in a new tab)
- Mavenorg.bouncycastle:bcprov-jdk14GHSA-73xv-w5gp-frxh (opens in a new tab)
- Mavenorg.bouncycastle:bcprov-jdk15GHSA-73xv-w5gp-frxh (opens in a new tab)
- Mavenorg.bouncycastle:bcprov-jdk15onGHSA-73xv-w5gp-frxh (opens in a new tab)
- Mavenorg.bouncycastle:bcprov-jdk15to18GHSA-73xv-w5gp-frxh (opens in a new tab)
- Mavenorg.bouncycastle:bcprov-jdk16GHSA-73xv-w5gp-frxh (opens in a new tab)
References
References26
- https://www.bouncycastle.org/releasenotes.html (opens in a new tab)x_refsource_MISCx_transferred
- [druid-commits] 20210107 [GitHub] [druid] jon-wei opened a new pull request #10733: Update deps for CVE-2020-28168 and CVE-2020-28052 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [kafka-jira] 20210107 [GitHub] [kafka] cyrusv opened a new pull request #9845: MINOR: Bump Bouncy Castle Dep to resolve CVE-2020-28052 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [druid-commits] 20210107 [GitHub] [druid] clintropolis merged pull request #10733: Update deps for CVE-2020-28168 and CVE-2020-28052 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [pulsar-commits] 20210119 [GitHub] [pulsar] fmiguelez opened a new issue #9235: Upgrade Bounce Castle dependency on client to solve CVE-2020-28052 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [druid-commits] 20210127 [druid] 01/02: Update deps for CVE-2020-28168 and CVE-2020-28052 (#10733) (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [pulsar-commits] 20210406 [GitHub] [pulsar] lhotari commented on issue #9235: Upgrade Bounce Castle dependency on client to solve CVE-2020-28052 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [solr-issues] 20210525 [jira] [Created] (SOLR-15431) Security vulnerability with Bouncy Castle library within Apache Solr 8.8.2 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://www.oracle.com/security-alerts/cpuApr2021.html (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/bcgit/bc-java/wiki/CVE-2020-28052 (opens in a new tab)x_refsource_MISCx_transferred
- https://www.synopsys.com/blogs/software-security/cve-2020-28052-bouncy-castle/ (opens in a new tab)x_refsource_MISCx_transferred
- https://www.oracle.com//security-alerts/cpujul2021.html (opens in a new tab)x_refsource_MISCx_transferred
- [karaf-issues] 20210810 [jira] [Created] (KARAF-7240) Upgrade bcprov artifacts to mitigate CVE-2020-28052 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [karaf-issues] 20210810 [jira] [Updated] (KARAF-7240) Upgrade bcprov artifacts to mitigate CVE-2020-28052 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [karaf-issues] 20210810 [jira] [Commented] (KARAF-7240) Upgrade bcprov artifacts to mitigate CVE-2020-28052 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [karaf-issues] 20210816 [jira] [Updated] (KARAF-7240) Upgrade bcprov artifacts to mitigate CVE-2020-28052 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [karaf-issues] 20210816 [jira] [Updated] (KARAF-7240) Upgrade bcprov 1.69 artifacts to mitigate CVE-2020-28052 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [karaf-issues] 20210817 [jira] [Commented] (KARAF-7240) Upgrade bcprov 1.68 artifacts to mitigate CVE-2020-28052 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [karaf-issues] 20210817 [jira] [Updated] (KARAF-7240) Upgrade bcprov 1.68 artifacts to mitigate CVE-2020-28052 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [karaf-issues] 20210820 [jira] [Updated] (KARAF-7240) Upgrade bcprov 1.68 artifacts to mitigate CVE-2020-28052 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [karaf-issues] 20210824 [jira] [Commented] (KARAF-7240) Upgrade bcprov 1.68 artifacts to mitigate CVE-2020-28052 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [karaf-issues] 20210824 [jira] [Resolved] (KARAF-7240) Upgrade bcprov 1.68 artifacts to mitigate CVE-2020-28052 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://www.oracle.com/security-alerts/cpuoct2021.html (opens in a new tab)x_refsource_MISCx_transferred
- https://www.oracle.com/security-alerts/cpujan2022.html (opens in a new tab)x_refsource_MISCx_transferred
- https://www.oracle.com/security-alerts/cpuapr2022.html (opens in a new tab)x_refsource_MISCx_transferred
- https://www.oracle.com/security-alerts/cpujul2022.html (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2021-0782 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-73xv-w5gp-frxh (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2020-28052)Record last updated .