CVE-2021-3670
MEDIUMCVSS 6.5/10EPSS 1.73%
Last modified
CVE-2021-3670 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. MaxQueryDuration not honoured in Samba AD DC LDAP. EPSS estimates a 1.73% chance of exploitation in the next 30 days.
Description
MaxQueryDuration not honoured in Samba AD DC LDAP
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Samba | Samba | >= 4.1.0, < 4.16.0 |
| Redhat | Storage | 3.0 |
| Fedoraproject | Fedora | 35 |
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2077533Issue Tracking, Patch, Third Party Advisory
- https://bugzilla.samba.org/show_bug.cgi?id=14694Issue Tracking, Patch, Vendor Advisory
- https://gitlab.com/samba-team/samba/-/commit/1d5b155619bc532c46932965b215bd73a920e56fPatch, Third Party Advisory
- https://gitlab.com/samba-team/samba/-/commit/2b3af3b560c9617a233c131376c870fce146c002Patch, Third Party Advisory
- https://gitlab.com/samba-team/samba/-/commit/3507e96b3dcf0c0b8eff7b2c08ffccaf0812a393Patch, Third Party Advisory
- https://gitlab.com/samba-team/samba/-/commit/5f0590362c5c0c5ee20503a67467f9be2d50e73bPatch, Third Party Advisory
- https://gitlab.com/samba-team/samba/-/commit/86fe9d48883f87c928bf31ccbd275db420386803Patch, Third Party Advisory
- https://gitlab.com/samba-team/samba/-/commit/dcfcafdbf756e12d9077ad7920eea25478c29f81Patch, Third Party Advisory
- https://gitlab.com/samba-team/samba/-/commit/e1ab0c43629686d1d2c0b0b2bcdc90057a792049Patch, Third Party Advisory
- https://security.gentoo.org/glsa/202309-06Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2077533Issue Tracking, Patch, Third Party Advisory
- https://bugzilla.samba.org/show_bug.cgi?id=14694Issue Tracking, Patch, Vendor Advisory
- https://gitlab.com/samba-team/samba/-/commit/1d5b155619bc532c46932965b215bd73a920e56fPatch, Third Party Advisory
- https://gitlab.com/samba-team/samba/-/commit/2b3af3b560c9617a233c131376c870fce146c002Patch, Third Party Advisory
- https://gitlab.com/samba-team/samba/-/commit/3507e96b3dcf0c0b8eff7b2c08ffccaf0812a393Patch, Third Party Advisory
- https://gitlab.com/samba-team/samba/-/commit/5f0590362c5c0c5ee20503a67467f9be2d50e73bPatch, Third Party Advisory
- https://gitlab.com/samba-team/samba/-/commit/86fe9d48883f87c928bf31ccbd275db420386803Patch, Third Party Advisory
- https://gitlab.com/samba-team/samba/-/commit/dcfcafdbf756e12d9077ad7920eea25478c29f81Patch, Third Party Advisory
- https://gitlab.com/samba-team/samba/-/commit/e1ab0c43629686d1d2c0b0b2bcdc90057a792049Patch, Third Party Advisory
- https://security.gentoo.org/glsa/202309-06Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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 score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 1.73% probability of exploitation in the next 30 days.
How do I fix CVE-2021-3670?
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.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2021-3670?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST