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CVE-2015-0138

14
FAUCET Score

CVE-2015-0138 describes a vulnerability in GSKit, used by IBM Tivoli Directory Server and IBM Security Directory Server, where improper TLS state transition restrictions allow remote attackers to conduct cipher-downgrade attacks. Specifically, this flaw enables attackers to force the use of weaker EXPORT_RSA ciphers, similar to the "FREAK" issue. The vulnerability has a CVSS score of 4.3 (Medium), indicating a network-based attack with medium complexity, requiring no authentication, and potentially leading to partial integrity compromise. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 6.0.0.73CPE matchmatch criteria
cpe:2.3:a:ibm:tivoli_directory_server:*:*:*:*:*:*:*:*
6.1.0CPE matchmatch criteria
cpe:2.3:a:ibm:tivoli_directory_server:6.1.0:*:*:*:*:*:*:*
6.1.0.0CPE matchmatch criteria
cpe:2.3:a:ibm:tivoli_directory_server:6.1.0.0:*:*:*:*:*:*:*
6.1.0.1CPE matchmatch criteria
cpe:2.3:a:ibm:tivoli_directory_server:6.1.0.1:*:*:*:*:*:*:*
6.1.0.2CPE matchmatch criteria
cpe:2.3:a:ibm:tivoli_directory_server:6.1.0.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

AV:N/AC:M/Au:N/C:N/I:P/A:N

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.79%
Probability of exploitation in next 30 days
EPSS Percentile
84.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0279 is in the 77th percentile among its peer group of 19,958 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, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 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 5 SupplementaryFixed in: java-1.6.0-ibm-1:1.6.0.16.4-1jpp.1.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5 SupplementaryFixed in: java-1.7.0-ibm-1:1.7.0.9.0-1jpp.1.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5 SupplementaryFixed in: java-1.5.0-ibm-1:1.5.0.16.10-1jpp.1.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Satellite 5.6Fixed in: java-1.6.0-ibm-1:1.6.0.16.4-1jpp.1.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Satellite 5.7Fixed in: java-1.6.0-ibm-1:1.6.0.16.4-1jpp.1.el6_6
View patch
redhatpatch availablevia redhat_api
Product: Supplementary for Red Hat Enterprise Linux 6Fixed in: java-1.6.0-ibm-1:1.6.0.16.4-1jpp.1.el6_6
View patch
redhatpatch availablevia redhat_api
Product: Supplementary for Red Hat Enterprise Linux 6Fixed in: java-1.7.1-ibm-1:1.7.1.3.0-1jpp.2.el6_6
View patch
redhatpatch availablevia redhat_api
Product: Supplementary for Red Hat Enterprise Linux 6Fixed in: java-1.5.0-ibm-1:1.5.0.16.10-1jpp.1.el6_6
View patch
redhatpatch availablevia redhat_api
Product: Supplementary for Red Hat Enterprise Linux 7Fixed in: java-1.7.1-ibm-1:1.7.1.3.0-1jpp.2.el7_1
View patch

Vendor Advisories (1)

redhatCVE-2015-0138Moderate

JDK: ephemeral RSA keys accepted for non-export SSL/TLS cipher suites (FREAK)

Mar 11, 2015

References

lists.opensuse.org / opensuse-security-announce/2015-06/msg00013.html
lists.opensuse.org / opensuse-security-announce/2015-06/msg00014.html
lists.opensuse.org / opensuse-security-announce/2015-06/msg00015.html
lists.opensuse.org / opensuse-security-announce/2015-06/msg00022.html
lists.opensuse.org / opensuse-security-announce/2015-06/msg00031.html
rhn.redhat.com / errata/RHSA-2015-1006.html
rhn.redhat.com / errata/RHSA-2015-1007.html
rhn.redhat.com / errata/RHSA-2015-1020.html
rhn.redhat.com / errata/RHSA-2015-1021.html
rhn.redhat.com / errata/RHSA-2015-1091.html
www-01.ibm.com / support/docview.wss
PatchVendor Advisory
www-01.ibm.com / support/docview.wss
Vendor Advisory
securityfocus.com / bid/73326