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CVE-2006-0591
The crypt_gensalt functions for BSDI-style extended DES-based and FreeBSD-sytle MD5-based password hashes in crypt_blowfish 0.4.7 and…
- 1.2LowCVSS base score
- 0.39%Exploitation in 30 daysEPSS · top 66% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
The crypt_gensalt functions for BSDI-style extended DES-based and FreeBSD-sytle MD5-based password hashes in crypt_blowfish 0.4.7 and earlier do not evenly and randomly distribute salts, which makes it easier for attackers to guess passwords from a stolen password file due to the increased number of collisions.
Timeline
ID reserved
By mitre
Published
- 19 years later
· 19 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 | Low1.2 | AV:L/AC:H/Au:N/C:P/I:N/A:N |
- EPSS (exploitation in 30 days)
- 0.39% · top 66% of all CVEs (10 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 1.2.
Affected products
n/a
- affected n/a
References
12
- 20060207 crypt_blowfish 1.0 (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 20653 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- cryptblowfish-salt-information-disclosure(24590) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- 20782 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- RHSA-2006:0526 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 18772 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 23005 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- 20232 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- ADV-2006-0477 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- http://support.avaya.com/elmodocs2/security/ASA-2006-113.htm (opens in a new tab)x_refsource_CONFIRMx_transferred
- oval:org.mitre.oval:def:11502 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- http://cvsweb.openwall.com/cgi/cvsweb.cgi/Owl/packages/glibc/crypt_blowfish/crypt_gensalt.c?only_with_tag=CRYPT_BLOWFISH_1_0 (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-2006-0598 (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-2006-0591)Record last updated .