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CVE-2015-5330

21
FAUCET Score

CVE-2015-5330 describes a sensitive information disclosure vulnerability in the ldb library, specifically affecting the AD LDAP server in Samba 4.x versions prior to 4.1.22, 4.2.7, and 4.3.3. This flaw, rated High severity (CVSS 7.5), allows unauthenticated remote attackers to extract daemon heap memory contents by sending crafted packets and observing error messages or database values. While the vulnerability has a high CVSS score, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
4.0.0CPE matchmatch criteria
cpe:2.3:a:samba:samba:4.0.0:*:*:*:*:*:*:*
4.0.1CPE matchmatch criteria
cpe:2.3:a:samba:samba:4.0.1:*:*:*:*:*:*:*
4.0.2CPE matchmatch criteria
cpe:2.3:a:samba:samba:4.0.2:*:*:*:*:*:*:*
4.0.3CPE matchmatch criteria
cpe:2.3:a:samba:samba:4.0.3:*:*:*:*:*:*:*
4.0.4CPE matchmatch criteria
cpe:2.3:a:samba:samba:4.0.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
6.11%
Probability of exploitation in next 30 days
EPSS Percentile
92.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0611 is in the 88th percentile among its peer group of 51,551 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (9)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: libldb-0:1.1.13-3.el6_7.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: samba4-0:4.0.0-67.el6_7.rc4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: samba-0:4.2.3-11.el7_2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: libldb-0:1.1.20-1.el7_2.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Gluster Storage 3.1 for RHEL 6Fixed in: samba-0:4.1.17-16.el6rhs
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Gluster Storage 3.1 for RHEL 6Fixed in: libldb-0:1.1.20-3.el6rhs
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Gluster Storage 3.1 for RHEL 7Fixed in: libldb-0:1.1.20-3.el7rhgs
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Gluster Storage 3.1 for RHEL 7Fixed in: samba-0:4.2.4-9.1.el7rhgs
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: libldb

Vendor Advisories (1)

redhatCVE-2015-5330Moderate

libldb: remote memory read in the Samba LDAP server

Dec 16, 2015

References

lists.opensuse.org / opensuse-security-announce/2015-12/msg00019.html
lists.opensuse.org / opensuse-security-announce/2015-12/msg00020.html
lists.opensuse.org / opensuse-security-announce/2015-12/msg00032.html
lists.opensuse.org / opensuse-security-announce/2015-12/msg00033.html
lists.opensuse.org / opensuse-security-announce/2016-01/msg00002.html
lists.opensuse.org / opensuse-security-announce/2016-01/msg00017.html
lists.opensuse.org / opensuse-security-announce/2016-04/msg00042.html
lists.opensuse.org / opensuse-security-announce/2016-04/msg00047.html
lists.opensuse.org / opensuse-security-announce/2016-04/msg00048.html
bugzilla.redhat.com / show_bug.cgi
git.samba.org
git.samba.org
git.samba.org
git.samba.org
git.samba.org
git.samba.org
security.gentoo.org / glsa/201612-47
samba.org / samba/security/CVE-2015-5330.html
Vendor Advisory
debian.org / security/2016/dsa-3433
oracle.com / technetwork/topics/security/linuxbulletinjan2016-2867209.html
securityfocus.com / bid/79734
securitytracker.com / id/1034493
ubuntu.com / usn/USN-2855-1
ubuntu.com / usn/USN-2855-2
ubuntu.com / usn/USN-2856-1