CVE-2020-28018
CRITICAL 9.8EPSS 56.5%
Exim 4 before 4.94.2 allows Use After Free in smtp_reset in certain situations that may be common for builds with OpenSSL.
- CVSS v3.1 NVD
- 9.8 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS v2.0 NVD
- 7.5 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P - EPSS
- 56.47% chance of exploitation in the next 30 days, 99th percentile
- Published
- 2021-05-06
- Updated
- 2024-08-04
Proof-of-concept exploits (3)
- dorkerdevil/CVE-2020-280187★ · 2021-05-15
- lockedbyte/CVE-Exploits690★ · 2021-08-21
- lockedbyte/slides8★ · 2022-05-27
Exploit collections (1)
- CVE-2020-28018helloexp/0day
Security advisories
- https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28018-OCORK.txt
- http://www.openwall.com/lists/oss-security/2021/05/11/14
- http://www.openwall.com/lists/oss-security/2021/05/11/15
- http://www.openwall.com/lists/oss-security/2021/05/11/17
- http://www.openwall.com/lists/oss-security/2021/05/11/5
- http://www.openwall.com/lists/oss-security/2021/05/11/6
- http://www.openwall.com/lists/oss-security/2021/05/12/2
- http://www.openwall.com/lists/oss-security/2021/05/12/3