CVE-2020-28018

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

9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0

7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS

56.75% chance of exploitation in the next 30 days, 99th percentile

Published

2021-05-06

Updated

2024-08-04

Proof-of-concept exploits (4)

• dorkerdevil/CVE-2020-280187★ · 2021-05-15
• lockedbyte/CVE-Exploits689★ · 2021-08-21
• lockedbyte/slides8★ · 2022-05-27
• zr0tt/CVE-2020-280183★ · 2021-05-18

Exploit collections (1)

• helloexp/0day/tree/master/00-CVE_EXP/CVE-2020-28018

References

• CVE Record
• NVD entry

Related

• CVE-2019-0708
• CVE-2019-11932
• CVE-2020-28008
• CVE-2021-21975
• CVE-2021-22986
• CVE-2021-27850