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CVE-2017-16943
The receive_msg function in receive.c in the SMTP daemon in Exim 4.88 and 4.89 allows remote attackers to execute arbitrary code or cause…
Critical9.8EPSS 47.1%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
The receive_msg function in receive.c in the SMTP daemon in Exim 4.88 and 4.89 allows remote attackers to execute arbitrary code or cause a denial of service (use-after-free) via vectors involving BDAT commands.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Critical9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 47.1% · top 1.2% of all CVEs (4 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Weakness
Affected products
n/a
- affected n/a
References (11)
- 1039872 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- https://lists.exim.org/lurker/message/20171125.034842.d1d75cac.en.html (opens in a new tab)x_refsource_MISCx_transferred
- https://git.exim.org/exim.git/commit/4090d62a4b25782129cc1643596dc2f6e8f63bde (opens in a new tab)x_refsource_MISCx_transferred
- http://openwall.com/lists/oss-security/2017/11/25/3 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/LetUsFsck/PoC-Exploit-Mirror/tree/master/CVE-2017-16944 (opens in a new tab)x_refsource_MISCx_transferred
- http://openwall.com/lists/oss-security/2017/11/25/1 (opens in a new tab)x_refsource_MISCx_transferred
- https://git.exim.org/exim.git/commitdiff/4e6ae6235c68de243b1c2419027472d7659aa2b4 (opens in a new tab)x_refsource_MISCx_transferred
- http://openwall.com/lists/oss-security/2017/11/25/2 (opens in a new tab)x_refsource_MISCx_transferred
- DSA-4053 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- https://bugs.exim.org/show_bug.cgi?id=2199 (opens in a new tab)x_refsource_MISCx_transferred
- [oss-security] 20210504 21Nails: Multiple vulnerabilities in Exim (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)
- 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-2017-16943)Record last updated .