CVE-2020-12783
exim4 - security update
7.5
HIGH
CVSS 3.1
EPSS 5.5%
Description
Exim through 4.93 has an out-of-bounds read in the SPA authenticator that could result in SPA/NTLM authentication bypass in auths/spa.c and auths/auth-spa.c.
How to fix CVE-2020-12783
To remediate CVE-2020-12783, upgrade the affected package to a fixed version below.
- Debian/exim4—upgrade to 4.93-16 or later
- Debian/exim4—upgrade to 4.84.2-2+deb8u7 or later
- —upgrade to 4.89-2+deb9u7 or later
Is CVE-2020-12783 being exploited?
Moderate — EPSS is 5.5%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (3)
- from 0, < 4.93-16
- from 0, < 4.84.2-2+deb8u7
- from 0, < 4.89-2+deb9u7
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |