CVE-2019-16928
- State
- Published
- Severity
- 9.8 Critical
- Published
- Sep 27, 2019
- Updated
- Oct 21, 2025
- Reserved
- Sep 27, 2019
Description
Exim 4.92 through 4.92.2 allows remote code execution, a different vulnerability than CVE-2019-15846. There is a heap-based buffer overflow in string_vformat in string.c involving a long EHLO command.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 9.8 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | CISA-ADP |
Weaknesses
- CWE-787 Out-of-bounds Write
Affected Products
| Product | Versions |
|---|---|
n/an/a |
|
References
- https://lists.exim.org/lurker/message/20190927.032457.c1044d4c.en.html
- https://bugs.exim.org/show_bug.cgi?id=2449
- https://git.exim.org/exim.git/commit/478effbfd9c3cc5a627fc671d4bf94d13670d65f
- [oss-security] 20190928 Exim CVE-2019-16928 RCE using a heap-based buffer overflowmailing-list
- [oss-security] 20190928 Re: Exim CVE-2019-16928 RCE using a heap-based buffer overflowmailing-list
- [oss-security] 20190928 Re: Exim CVE-2019-16928 RCE using a heap-based buffer overflowmailing-list
- DSA-4536vendor-advisory
- USN-4141-1vendor-advisory
- [oss-security] 20190929 Re: Exim CVE-2019-16928 RCE using a heap-based buffer overflowmailing-list
- 20190929 [SECURITY] [DSA 4536-1] exim4 security updatemailing-list
- FEDORA-2019-006dfc94cdvendor-advisory
- FEDORA-2019-e080507ba5vendor-advisory
- FEDORA-2019-d778bd4137vendor-advisory
- GLSA-202003-47vendor-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-16928government-resource
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