Is CVE-2020-24386 in the CISA KEV catalog?

No. CVE-2020-24386 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-24386?

CVE-2020-24386 has a CVSS v3 base score of 6.8 (MEDIUM).

What is the EPSS score for CVE-2020-24386?

CVE-2020-24386 has an EPSS score of 2.75% (84th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-24386?

Upgrade dovecot on debian 11 to 1:2.3.13+dfsg1-1 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2020-24386

MEDIUMEPSS 84th pctl

6.8

CVSS v3

NVD

Description

An issue was discovered in Dovecot before 2.3.13. By using IMAP IDLE, an authenticated attacker can trigger unhibernation via attacker-controlled parameters, leading to access to other users' email messages (and path disclosure).

How to fix

Remediation Available

dovecotDebian

Fixed in:1:2.3.13+dfsg1-1CVE-2020-24386

dovecotUbuntu

Fixed in:1:2.2.22-1ubuntu2.14USN-4674-1

Fixed in:1:2.2.33.2-1ubuntu4.7USN-4674-1

Fixed in:1:2.3.7.2-1ubuntu3.3USN-4674-1

dovecot-coreUbuntu

Fixed in:1:2.2.22-1ubuntu2.14USN-4674-1

Fixed in:1:2.2.33.2-1ubuntu4.7USN-4674-1

Fixed in:1:2.3.7.2-1ubuntu3.3USN-4674-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityNone

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

Exploit Intelligence

2.75%probability of exploitation in 30 days

84thpercentile

Elevated risk: more likely to be exploited than 84% of all known CVEs.

References

Vendor Advisory3

Third-Party Advisory5

Other references1

lists.fedoraproject.org

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.