CVE-2009-3875
The MessageDigest.isEqual function in Java Runtime Environment (JRE) in Sun Java SE in JDK and JRE 5.0 before Update 22, JDK and JRE 6…
- 5.0MediumCVSS base score
- 3.2%Exploitation in 30 daysEPSS · top 12% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
The MessageDigest.isEqual function in Java Runtime Environment (JRE) in Sun Java SE in JDK and JRE 5.0 before Update 22, JDK and JRE 6 before Update 17, SDK and JRE 1.3.x before 1.3.1_27, and SDK and JRE 1.4.x before 1.4.2_24 allows remote attackers to spoof HMAC-based digital signatures, and possibly bypass authentication, via unspecified vectors related to "timing attack vulnerabilities," aka Bug Id 6863503.
Timeline
ID reserved
By mitre
Published
- 15 years later
· 15 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 | 2.0 | Medium5.0 | AV:N/AC:L/Au:N/C:N/I:P/A:N |
- EPSS (exploitation in 30 days)
- 3.2% · top 12% of all CVEs (11 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.
Affected products
n/a
- affected n/a
References
References25
- HPSBUX02503 (opens in a new tab)vendor-advisoryx_refsource_HPx_transferred
- 36881 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- http://support.apple.com/kb/HT3970 (opens in a new tab)x_refsource_CONFIRMx_transferred
- HPSBMU02799 (opens in a new tab)vendor-advisoryx_refsource_HPx_transferred
- http://support.apple.com/kb/HT3969 (opens in a new tab)x_refsource_CONFIRMx_transferred
- HPSBMU02703 (opens in a new tab)vendor-advisoryx_refsource_HPx_transferred
- GLSA-200911-02 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- RHSA-2009:1694 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- oval:org.mitre.oval:def:12112 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- oval:org.mitre.oval:def:7549 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- APPLE-SA-2009-12-03-1 (opens in a new tab)vendor-advisoryx_refsource_APPLEx_transferred
- 37231 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- SUSE-SA:2009:058 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- ADV-2009-3131 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- APPLE-SA-2009-12-03-2 (opens in a new tab)vendor-advisoryx_refsource_APPLEx_transferred
- 37581 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- http://www.oracle.com/technetwork/topics/security/cpujan2010-084891.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://java.sun.com/javase/6/webnotes/6u17.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- 37841 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 37239 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- oval:org.mitre.oval:def:11847 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- oval:org.mitre.oval:def:7913 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- MDVSA-2010:084 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
- 37386 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 270475 (opens in a new tab)vendor-advisoryx_refsource_SUNALERTx_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-2009-3846 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (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-2009-3875)Record last updated .