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CVE-2015-5296
Samba 3.x and 4.x before 4.1.22, 4.2.x before 4.2.7, and 4.3.x before 4.3.3 supports connections that are encrypted but unsigned, which…
Medium5.4EPSS 7.3%
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
Samba 3.x and 4.x before 4.1.22, 4.2.x before 4.2.7, and 4.3.x before 4.3.3 supports connections that are encrypted but unsigned, which allows man-in-the-middle attackers to conduct encrypted-to-unencrypted downgrade attacks by modifying the client-server data stream, related to clidfs.c, libsmb_server.c, and smbXcli_base.c.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium5.4 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N |
- EPSS (exploitation in 30 days)
- 7.3% · top 5.6% of all CVEs (3 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.4.
Weakness
Affected products
n/a
- affected n/a
References (25)
- https://git.samba.org/?p=samba.git%3Ba=commit%3Bh=a819d2b440aafa3138d95ff6e8b824da885a70e9 (opens in a new tab)x_refsource_CONFIRMx_transferred
- FEDORA-2015-0e0879cc8a (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- https://git.samba.org/?p=samba.git%3Ba=commit%3Bh=1ba49b8f389eda3414b14410c7fbcb4041ca06b1 (opens in a new tab)x_refsource_CONFIRMx_transferred
- openSUSE-SU-2016:1064 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- USN-2855-2 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- SUSE-SU-2016:0032 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- SUSE-SU-2015:2304 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- SUSE-SU-2015:2305 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- 79732 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- SUSE-SU-2016:0164 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- openSUSE-SU-2015:2354 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- FEDORA-2015-b36076d32e (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- openSUSE-SU-2016:1106 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05115993 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://git.samba.org/?p=samba.git%3Ba=commit%3Bh=d724f835acb9f4886c0001af32cd325dbbf1f895 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 1034493 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- DSA-3433 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- openSUSE-SU-2016:1107 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- GLSA-201612-47 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=1290292 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://www.samba.org/samba/security/CVE-2015-5296.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- USN-2855-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- openSUSE-SU-2015:2356 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
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)
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[](https://trackcve.app/cve/CVE-2015-5296)Record last updated .