Vulnerabilities (CVE)

Filtered by vendor Samba Subscribe
Filtered by product Samba
Total 216 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2023-0922 1 Samba 1 Samba 2026-06-17 N/A 5.9 MEDIUM
The Samba AD DC administration tool, when operating against a remote LDAP server, will by default send new or reset passwords over a signed-only connection.
CVE-2023-0614 1 Samba 1 Samba 2026-06-17 N/A 6.5 MEDIUM
The fix in 4.6.16, 4.7.9, 4.8.4 and 4.9.7 for CVE-2018-10919 Confidential attribute disclosure vi LDAP filters was insufficient and an attacker may be able to obtain confidential BitLocker recovery keys from a Samba AD DC.
CVE-2023-0225 1 Samba 1 Samba 2026-06-17 N/A 4.3 MEDIUM
A flaw was found in Samba. An incomplete access check on dnsHostName allows authenticated but otherwise unprivileged users to delete this attribute from any object in the directory.
CVE-2022-45141 1 Samba 1 Samba 2026-06-17 N/A 9.8 CRITICAL
Since the Windows Kerberos RC4-HMAC Elevation of Privilege Vulnerability was disclosed by Microsoft on Nov 8 2022 and per RFC8429 it is assumed that rc4-hmac is weak, Vulnerable Samba Active Directory DCs will issue rc4-hmac encrypted tickets despite the target server supporting better encryption (eg aes256-cts-hmac-sha1-96).
CVE-2022-44640 2 Heimdal Project, Samba 2 Heimdal, Samba 2026-06-17 N/A 9.8 CRITICAL
Heimdal before 7.7.1 allows remote attackers to execute arbitrary code because of an invalid free in the ASN.1 codec used by the Key Distribution Center (KDC).
CVE-2022-42898 3 Heimdal Project, Mit, Samba 3 Heimdal, Kerberos 5, Samba 2026-06-17 N/A 8.8 HIGH
PAC parsing in MIT Kerberos 5 (aka krb5) before 1.19.4 and 1.20.x before 1.20.1 has integer overflows that may lead to remote code execution (in KDC, kadmind, or a GSS or Kerberos application server) on 32-bit platforms (which have a resultant heap-based buffer overflow), and cause a denial of service on other platforms. This occurs in krb5_pac_parse in lib/krb5/krb/pac.c. Heimdal before 7.7.1 has "a similar bug."
CVE-2022-3592 2 Fedoraproject, Samba 2 Fedora, Samba 2026-06-17 N/A 6.5 MEDIUM
A symlink following vulnerability was found in Samba, where a user can create a symbolic link that will make 'smbd' escape the configured share path. This flaw allows a remote user with access to the exported part of the file system under a share via SMB1 unix extensions or NFS to create symlinks to files outside the 'smbd' configured share path and gain access to another restricted server's filesystem.
CVE-2022-3437 2 Fedoraproject, Samba 2 Fedora, Samba 2026-06-17 N/A 6.5 MEDIUM
A heap-based buffer overflow vulnerability was found in Samba within the GSSAPI unwrap_des() and unwrap_des3() routines of Heimdal. The DES and Triple-DES decryption routines in the Heimdal GSSAPI library allow a length-limited write buffer overflow on malloc() allocated memory when presented with a maliciously small packet. This flaw allows a remote user to send specially crafted malicious data to the application, possibly resulting in a denial of service (DoS) attack.
CVE-2022-32746 1 Samba 1 Samba 2026-06-17 N/A 5.4 MEDIUM
A flaw was found in the Samba AD LDAP server. The AD DC database audit logging module can access LDAP message values freed by a preceding database module, resulting in a use-after-free issue. This issue is only possible when modifying certain privileged attributes, such as userAccountControl.
CVE-2022-32745 1 Samba 1 Samba 2026-06-17 N/A 8.1 HIGH
A flaw was found in Samba. Samba AD users can cause the server to access uninitialized data with an LDAP add or modify the request, usually resulting in a segmentation fault.
CVE-2022-32744 1 Samba 1 Samba 2026-06-17 N/A 8.8 HIGH
A flaw was found in Samba. The KDC accepts kpasswd requests encrypted with any key known to it. By encrypting forged kpasswd requests with its own key, a user can change other users' passwords, enabling full domain takeover.
CVE-2022-32743 2 Fedoraproject, Samba 2 Fedora, Samba 2026-06-17 N/A 7.5 HIGH
Samba does not validate the Validated-DNS-Host-Name right for the dNSHostName attribute which could permit unprivileged users to write it.
CVE-2022-32742 1 Samba 1 Samba 2026-06-17 N/A 4.3 MEDIUM
A flaw was found in Samba. Some SMB1 write requests were not correctly range-checked to ensure the client had sent enough data to fulfill the write, allowing server memory contents to be written into the file (or printer) instead of client-supplied data. The client cannot control the area of the server memory written to the file (or printer).
CVE-2022-2127 4 Debian, Fedoraproject, Redhat and 1 more 4 Debian Linux, Fedora, Enterprise Linux and 1 more 2026-06-17 N/A 5.9 MEDIUM
An out-of-bounds read vulnerability was found in Samba due to insufficient length checks in winbindd_pam_auth_crap.c. When performing NTLM authentication, the client replies to cryptographic challenges back to the server. These replies have variable lengths, and Winbind fails to check the lan manager response length. When Winbind is used for NTLM authentication, a maliciously crafted request can trigger an out-of-bounds read in Winbind, possibly resulting in a crash.
CVE-2022-2031 1 Samba 1 Samba 2026-06-17 N/A 8.8 HIGH
A flaw was found in Samba. The security vulnerability occurs when KDC and the kpasswd service share a single account and set of keys, allowing them to decrypt each other's tickets. A user who has been requested to change their password, can exploit this flaw to obtain and use tickets to other services.
CVE-2022-1615 2 Fedoraproject, Samba 2 Fedora, Samba 2026-06-17 N/A 5.5 MEDIUM
In Samba, GnuTLS gnutls_rnd() can fail and give predictable random values.
CVE-2022-0336 2 Fedoraproject, Samba 2 Fedora, Samba 2026-06-17 N/A 8.8 HIGH
The Samba AD DC includes checks when adding service principals names (SPNs) to an account to ensure that SPNs do not alias with those already in the database. Some of these checks are able to be bypassed if an account modification re-adds an SPN that was previously present on that account, such as one added when a computer is joined to a domain. An attacker who has the ability to write to an account can exploit this to perform a denial-of-service attack by adding an SPN that matches an existing service. Additionally, an attacker who can intercept traffic can impersonate existing services, resulting in a loss of confidentiality and integrity.
CVE-2021-44142 6 Canonical, Debian, Fedoraproject and 3 more 23 Ubuntu Linux, Debian Linux, Fedora and 20 more 2026-06-17 9.0 HIGH 8.8 HIGH
The Samba vfs_fruit module uses extended file attributes (EA, xattr) to provide "...enhanced compatibility with Apple SMB clients and interoperability with a Netatalk 3 AFP fileserver." Samba versions prior to 4.13.17, 4.14.12 and 4.15.5 with vfs_fruit configured allow out-of-bounds heap read and write via specially crafted extended file attributes. A remote attacker with write access to extended file attributes can execute arbitrary code with the privileges of smbd, typically root.
CVE-2021-44141 3 Fedoraproject, Redhat, Samba 3 Fedora, Storage, Samba 2026-06-17 3.5 LOW 4.3 MEDIUM
All versions of Samba prior to 4.15.5 are vulnerable to a malicious client using a server symlink to determine if a file or directory exists in an area of the server file system not exported under the share definition. SMB1 with unix extensions has to be enabled in order for this attack to succeed.
CVE-2021-43566 1 Samba 1 Samba 2026-06-17 1.2 LOW 2.5 LOW
All versions of Samba prior to 4.13.16 are vulnerable to a malicious client using an SMB1 or NFS race to allow a directory to be created in an area of the server file system not exported under the share definition. Note that SMB1 has to be enabled, or the share also available via NFS in order for this attack to succeed.