Strix
26.1K

CVE-2020-7046

HIGHCVSS 7.5/10EPSS 50.42%

Last modified

CVE-2020-7046 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. lib-smtp in submission-login and lmtp in Dovecot 2.3.9 before 2.3.9.3 mishandles truncated UTF-8 data in command parameters, as demonstrated by the unauthenticated triggering of a submission-login infinite loop.. EPSS estimates a 50.42% chance of exploitation in the next 30 days.

Description

lib-smtp in submission-login and lmtp in Dovecot 2.3.9 before 2.3.9.3 mishandles truncated UTF-8 data in command parameters, as demonstrated by the unauthenticated triggering of a submission-login infinite loop.

Metrics

CVSS 3.1
7.5/10

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

EPSS Probability
50.42%

98.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
DovecotDovecot>= 2.3.9, < 2.3.9.3
FedoraprojectFedora30
FedoraprojectFedora31

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-7046?
lib-smtp in submission-login and lmtp in Dovecot 2.3.9 before 2.3.9.3 mishandles truncated UTF-8 data in command parameters, as demonstrated by the unauthenticated triggering of a submission-login infinite loop.
How severe is CVE-2020-7046?
CVE-2020-7046 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 50.42% probability of exploitation in the next 30 days.
How do I fix CVE-2020-7046?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-7046?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST