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CVE-2010-2023
transports/appendfile.c in Exim before 4.72, when a world-writable sticky-bit mail directory is used, does not verify the st_nlink field…
Medium4.4EPSS 0.28%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
transports/appendfile.c in Exim before 4.72, when a world-writable sticky-bit mail directory is used, does not verify the st_nlink field of mailbox files, which allows local users to cause a denial of service or possibly gain privileges by creating a hard link to another user's file.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium4.4 | AV:L/AC:M/Au:N/C:P/I:P/A:P |
- EPSS (exploitation in 30 days)
- 0.28% · top 79% of all CVEs (5 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.4.
Weakness
Affected products
n/a
- affected n/a
References (18)
- 20100603 Multiple vulnerabilities in Exim (opens in a new tab)mailing-listx_refsource_FULLDISCx_transferred
- 40451 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- ADV-2010-1402 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- ADV-2011-0364 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- 43243 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- http://bugs.exim.org/show_bug.cgi?id=988 (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://vcs.exim.org/viewvc/exim/exim-src/src/transports/appendfile.c?r1=1.24&r2=1.25 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 40019 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- [exim-dev] 20100524 Security issues in exim4 local delivery (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- http://vcs.exim.org/viewvc/exim/exim-doc/doc-txt/ChangeLog?view=markup&pathrev=exim-4_72_RC2 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 40123 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 20100603 Multiple vulnerabilities in Exim (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=600093 (opens in a new tab)x_refsource_CONFIRMx_transferred
- FEDORA-2010-9524 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- SUSE-SR:2010:014 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- USN-1060-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- exim-mail-directory-priv-escalation(59043) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- FEDORA-2010-9506 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_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)
- 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://trackcve.app/cve/CVE-2010-2023)Record last updated .