Multiple flaws were found in the way samba AD DC implemented access and conformance checking of stored data. An attacker could use this flaw to cause total domain compromise.
An official patch is available. Apply the patch as soon as possible.
CVSS v4.0 Metrics
Exploitability
Attack VectorNetwork
ComplexityLow
RequirementsPresent
PrivilegesLow
User InteractionNone
Threat
Exploit MaturityUnreported
Vulnerable System
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
Subsequent System
ConfidentialityNone
IntegrityNone
AvailabilityNone
Supplemental
SafetyNegligible
AutomatableYes
RecoveryAutomatic
Value DensityConcentrated
UrgencyMedium
Patch StatusOfficial Patch
Change Log
| Date | Source | Changes | Score |
|---|
| 2026-07-21 | nvd | AV: P→N, AC: H→L, PR: H→L, UI: A→N, VC: N→H, VI: N→H, VA: N→H | 0.0 → 5.2 |
| 2026-07-21 | nvd | patch: Unavailable→Official Patch | 0.0 → 0.0 |
| 2026-07-21 | cve.org | initial, patch: Unavailable | 0.0 |
Affected Software
| Vendor | Product | Version |
|---|
| canonical | ubuntu_linux | 18.04 |
| canonical | ubuntu_linux | 20.04 |
| canonical | ubuntu_linux | 21.04 |
| canonical | ubuntu_linux | 21.10 |
| debian | debian_linux | 10.0 |
| debian | debian_linux | 9.0 |
| fedoraproject | fedora | 33 |
| fedoraproject | fedora | 34 |
| fedoraproject | fedora | 35 |
| n/a | samba | samba 4.15.2, samba 4.14.10, samba 4.13.14 |
| samba | samba | ≥ 4.0.0, < 4.13.14 |
| samba | samba | ≥ 4.14.0, < 4.14.10 |
| samba | samba | ≥ 4.15.0, < 4.15.2 |
Published: 2022-02-18
