How severe is CVE-2021-3670?

CVE-2021-3670 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2021-3670 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-3670?

CVE-2021-3670 primarily affects Redhat Storage. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-3670?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-3670 published?

CVE-2021-3670 was published on 2022-08-23 and last updated on 2026-06-17.

CVE-2021-3670

CVE-2021-3670 is a medium-severity vulnerability in Redhat Storage with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-400.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 2% (75th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-400
Affected product: Redhat Storage
Published: 2022-08-23
Last modified: 2026-06-17

Description

MaxQueryDuration not honoured in Samba AD DC LDAP

Frequently asked questions

What is CVE-2021-3670?: MaxQueryDuration not honoured in Samba AD DC LDAP
How severe is CVE-2021-3670?: CVE-2021-3670 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2021-3670 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-3670?: CVE-2021-3670 primarily affects Redhat Storage. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-3670?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-3670 published?: CVE-2021-3670 was published on 2022-08-23 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*
cpe:2.3:a:redhat:storage:3.0:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*

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