Is CVE-2021-40110 in the CISA KEV catalog?

No. CVE-2021-40110 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-40110?

CVE-2021-40110 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2021-40110?

CVE-2021-40110 has an EPSS score of 2.86% (85th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-40110?

Upgrade james to 3.6.1 or later.

CVE & CISA-KEV Catalog

CVE-2021-40110

HIGHEPSS 85th pctl

7.5

CVSS v3

NVD

Description

In Apache James, using Jazzer fuzzer, we identified that an IMAP user can craft IMAP LIST commands to orchestrate a Denial Of Service using a vulnerable Regular expression. This affected Apache James prior to 3.6.1 We recommend upgrading to Apache James 3.6.1 or higher , which enforce the use of RE2J regular expression engine to execute regex in linear time without back-tracking.

How to fix

Remediation Available

jamesNVD

Affected:< 3.6.1Fixed in:3.6.1CVE-2021-40110derived from NVD

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

Exploit Intelligence

2.86%probability of exploitation in 30 days

85thpercentile

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

References

Third-Party Advisory2

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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.