The Netlogon server implementation in smbd in Samba 3.5.x and 3.6.x before 3.6.25, 4.0.x before 4.0.25, 4.1.x before 4.1.17, and 4.2.x…

Description

The Netlogon server implementation in smbd in Samba 3.5.x and 3.6.x before 3.6.25, 4.0.x before 4.0.25, 4.1.x before 4.1.17, and 4.2.x before 4.2.0rc5 performs a free operation on an uninitialized stack pointer, which allows remote attackers to execute arbitrary code via crafted Netlogon packets that use the ServerPasswordSet RPC API, as demonstrated by packets reaching the _netr_ServerPasswordSet function in rpc_server/netlogon/srv_netlog_nt.c.

Scores

EPSS (exploitation in 30 days)

88.2% · top 0.2% of all CVEs (3 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 10.0.

Weakness

• n/a
• CWE-17 (opens in a new tab)All about CWE-17 and its CVEs

Affected products

• n/a

  • affected n/a

References (36)

• HPSBUX03320 (opens in a new tab)vendor-advisoryx_refsource_HPx_transferred
• RHSA-2015:0257 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• RHSA-2015:0254 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• https://securityblog.redhat.com/2015/02/23/samba-vulnerability-cve-2015-0240/ (opens in a new tab)x_refsource_CONFIRMx_transferred
• http://advisories.mageia.org/MGASA-2015-0084.html (opens in a new tab)x_refsource_CONFIRMx_transferred
• SSA:2015-064-01 (opens in a new tab)vendor-advisoryx_refsource_SLACKWAREx_transferred
• 36741 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
• RHSA-2015:0250 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• https://support.lenovo.com/product_security/samba_remote_vuln (opens in a new tab)x_refsource_CONFIRMx_transferred
• USN-2508-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• openSUSE-SU-2016:1064 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• SUSE-SU-2015:0386 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• RHSA-2015:0253 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• https://www.samba.org/samba/security/CVE-2015-0240 (opens in a new tab)x_refsource_CONFIRMx_transferred
• 72711 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
• RHSA-2015:0249 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• RHSA-2015:0251 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• GLSA-201502-15 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
• DSA-3171 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
• 1031783 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
• RHSA-2015:0252 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• https://bugzilla.redhat.com/show_bug.cgi?id=1191325 (opens in a new tab)x_refsource_CONFIRMx_transferred
• MDVSA-2015:082 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
• HPSBGN03288 (opens in a new tab)vendor-advisoryx_refsource_HPx_transferred
• openSUSE-SU-2016:1106 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• https://support.lenovo.com/us/en/product_security/samba_remote_vuln (opens in a new tab)x_refsource_CONFIRMx_transferred
• MDVSA-2015:081 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
• RHSA-2015:0255 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• https://access.redhat.com/articles/1346913 (opens in a new tab)x_refsource_CONFIRMx_transferred
• http://www.oracle.com/technetwork/topics/security/bulletinjan2015-2370101.html (opens in a new tab)x_refsource_CONFIRMx_transferred
• openSUSE-SU-2016:1107 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• openSUSE-SU-2015:0375 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• RHSA-2015:0256 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• SUSE-SU-2015:0371 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• SUSE-SU-2015:0353 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• https://security.netapp.com/advisory/ntap-20250509-0001/ (opens in a new tab)

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2015-0240](https://trackcve.app/badge/CVE-2015-0240.svg)](https://trackcve.app/cve/CVE-2015-0240)

Record last updated 9 May 2025, 20:03 UTC.