Is CVE-2019-10691 in the CISA KEV catalog?

No. CVE-2019-10691 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2019-10691?

CVE-2019-10691 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2019-10691?

CVE-2019-10691 has an EPSS score of 2.80% (85th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2019-10691?

Upgrade dovecot on debian 11 to 1:2.3.4.1-4 or later.

CVE & CISA-KEV Catalog

CVE-2019-10691

HIGHEPSS 85th pctl

7.5

CVSS v3

NVD

Description

The JSON encoder in Dovecot before 2.3.5.2 allows attackers to repeatedly crash the authentication service by attempting to authenticate with an invalid UTF-8 sequence as the username.

How to fix

Remediation Available

dovecotDebian

Fixed in:1:2.3.4.1-4CVE-2019-10691

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 ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

2.80%probability of exploitation in 30 days

85thpercentile

Elevated risk: more likely to be exploited than 85% of all known CVEs.

References

Vendor Advisory1

dovecot.org

Third-Party Advisory2

Other references2

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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.