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CVE-2019-18928

CRITICALCVSS 9.8/10EPSS 2.39%

Last modified

CVE-2019-18928 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Cyrus IMAP 2.5.x before 2.5.14 and 3.x before 3.0.12 allows privilege escalation because an HTTP request may be interpreted in the authentication context of an unrelated previous request that arrived over the same connection.. EPSS estimates a 2.39% chance of exploitation in the next 30 days.

Description

Cyrus IMAP 2.5.x before 2.5.14 and 3.x before 3.0.12 allows privilege escalation because an HTTP request may be interpreted in the authentication context of an unrelated previous request that arrived over the same connection.

Metrics

CVSS 3.1
9.8/10

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

EPSS Probability
2.39%

81.8th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
CyrusImap>= 2.5.0, < 2.5.14
CyrusImap>= 3.0.0, < 3.0.12
FedoraprojectFedora30
FedoraprojectFedora31
DebianDebian Linux9.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2019-18928?
Cyrus IMAP 2.5.x before 2.5.14 and 3.x before 3.0.12 allows privilege escalation because an HTTP request may be interpreted in the authentication context of an unrelated previous request that arrived over the same connection.
How severe is CVE-2019-18928?
CVE-2019-18928 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.39% probability of exploitation in the next 30 days.
How do I fix CVE-2019-18928?
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.

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Source: NVD / NIST