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CVE-2015-3276

24
FAUCET Score

CVE-2015-3276 describes a vulnerability in the nss_parse_ciphers function within OpenLDAP, specifically affecting its handling of OpenSSL-style cipher strings. This flaw could lead to the use of weaker ciphers than intended, impacting OpenLDAP, Oracle, and Red Hat products. With a CVSS score of 7.5 (HIGH), it presents a network-exploitable vulnerability with low attack complexity, potentially leading to high integrity impact without requiring user interaction. Despite its severity, there is no evidence of active exploitation, public exploit code, or significant community discussion, and it is not listed in CISA's KEV catalog.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.5CPE matchmatch criteria
cpe:2.3:a:openldap:openldap:*:*:*:*:*:*:*:*
7CPE matchmatch criteria
cpe:2.3:o:oracle:linux:7:-:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
7.3CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_eus:7.3:*:*:*:*:*:*:*
7.4CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_eus:7.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
5.27%
Probability of exploitation in next 30 days
EPSS Percentile
91.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0527 is in the 85th percentile among its peer group of 51,553 CVEs.

Social Chatter

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 (12)

mediatekpatch availablevia llm_extracted
Fixed in: 9.3.1, 9.2.3, 9.1.6
microsoftpatch availablevia msrc
Product: cbl2 openldap 2.4.57-5 on CBL Mariner 2.0Fixed in: 2.4.57-5
microsoftpatch availablevia msrc
Product: 16831-16820Fixed in: 2.4.57-2
microsoftpatch availablevia msrc
Product: 16832-16823Fixed in: 2.4.57-5
microsoftpatch availablevia msrc
Product: cm1 openldap 2.4.57-2 on CBL Mariner 1.0Fixed in: 2.4.57-2
microsoftpatch availablevia msrc
Product: CBL Mariner 1.0 ARMFixed in: 2.4.57-2
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 x64Fixed in: 2.4.57-5
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 ARMFixed in: 2.4.57-5
microsoftpatch availablevia msrc
Product: CBL Mariner 1.0 x64Fixed in: 2.4.57-2
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: openldap-0:2.4.40-8.el7
View patch
redhatpatch availablevia nvd_reference
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: openldap

Vendor Advisories (4)

mediatekllm-mediatek-5bd731d14163992dHIGH

Third-Party Package Updates in Splunk Enterprise - October 2024

Oct 14, 2024
microsoft2021-Dec/CVE-2015-3276

CVE-2015-3276

Dec 14, 2021
microsoft2015-Dec/CVE-2015-3276Important

The nss_parse_ciphers function in libraries/libldap/tls_m.c in OpenLDAP does not properly parse OpenSSL-style multi-keyword mode cipher strings which might cause a weaker than intended cipher to be used and allow remote attackers to have unspecified impact via unknown vectors.

Dec 2, 2015
redhatCVE-2015-3276Moderate

openldap: incorrect multi-keyword mode cipherstring parsing

Jul 15, 2015

References

rhn.redhat.com / errata/RHSA-2015-2131.html
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingPatchThird Party Advisory
oracle.com / technetwork/topics/security/linuxbulletinoct2015-2719645.html
Third Party Advisory
securitytracker.com / id/1034221
Broken LinkThird Party AdvisoryVDB Entry