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CVE-2005-0022
Buffer overflow in the spa_base64_to_bits function in Exim before 4.43, as originally obtained from Samba code, and as called by the…
- 4.6MediumCVSS base score
- 0.72%Exploitation in 30 daysEPSS · top 46% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
Buffer overflow in the spa_base64_to_bits function in Exim before 4.43, as originally obtained from Samba code, and as called by the auth_spa_client function, may allow attackers to execute arbitrary code during SPA authentication.
Timeline
ID reserved
By mitre
- 2 days later
· 2 days later
Published
- 20 years later
· 20 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 | Medium4.6 | AV:L/AC:L/Au:N/C:P/I:P/A:P |
- EPSS (exploitation in 30 days)
- 0.72% · top 46% of all CVEs (9 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.6.
Affected products
n/a
- affected n/a
References
8
- oval:org.mitre.oval:def:11293 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- http://ftp6.us.freebsd.org/pub/mail/exim/ChangeLogs/ChangeLog-4.44 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 20050212 exim auth_spa_server() PoC exploit (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 12188 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- RHSA-2005:025 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 20050107 Exim auth_spa_server() Buffer Overflow Vulnerability (opens in a new tab)third-party-advisoryx_refsource_IDEFENSEx_transferred
- GLSA-200501-23 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- [exim] 20050104 2 smallish security issues (opens in a new tab)mailing-listx_refsource_MLISTx_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-2005-0023 (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-2005-0022)Record last updated .