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CVE-2015-1793

74
FAUCET Score

CVE-2015-1793 is a critical vulnerability in OpenSSL versions 1.0.1n/o and 1.0.2b/c, affecting various Oracle products. It allows remote attackers to spoof a Certification Authority (CA) role by improperly processing X.509 Basic Constraints, leading to unintended certificate verifications. This medium-severity vulnerability (CVSS 6.5) has a low attack complexity and can result in information disclosure and integrity compromise. While not currently on the CISA KEV catalog, exploit code is publicly available via Metasploit and ExploitDB, and it has garnered significant community discussion and media coverage, indicating a high potential for exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
6.1.2.2CPE matchmatch criteria
cpe:2.3:a:oracle:supply_chain_products_suite:6.1.2.2:*:*:*:*:*:*:*
6.1.3.0CPE matchmatch criteria
cpe:2.3:a:oracle:supply_chain_products_suite:6.1.3.0:*:*:*:*:*:*:*
6.2.0CPE matchmatch criteria
cpe:2.3:a:oracle:supply_chain_products_suite:6.2.0:*:*:*:*:*:*:*
9.1CPE matchmatch criteria
cpe:2.3:a:oracle:jd_edwards_enterpriseone_tools:9.1:*:*:*:*:*:*:*
9.2CPE matchmatch criteria
cpe:2.3:a:oracle:jd_edwards_enterpriseone_tools:9.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
2.5
CvssVersion
3.0

Exploit Intelligence

EPSS Score
61.80%
Probability of exploitation in next 30 days
EPSS Percentile
99.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
Metasploit: OpenSSL Alternative Chains Certificate Forgery MITM Proxy · Jul 9, 2015
ExploitDB: EDB-38640 · Nov 5, 2015
This CVE's current EPSS score of 0.6180 is in the 99th percentile among its peer group of 23,684 CVEs.

Social Chatter

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

Media Mentions

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 (1)

oraclepatch availablevia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2015-1793Important

openssl: alternative chains certificate forgery

Jul 9, 2015

References

fortiguard.com / advisory/2015-07-09-cve-2015-1793-openssl-alternative-chains-certificate-forgery
ftp.netbsd.org / pub/NetBSD/security/advisories/NetBSD-SA2015-008.txt.asc
kb.juniper.net / InfoCenter/index
lists.fedoraproject.org / pipermail/package-announce/2015-July/161747.html
lists.fedoraproject.org / pipermail/package-announce/2015-July/161782.html
marc.info
marc.info
openssl.org / news/secadv_20150709.txt
Vendor Advisory
git.openssl.org
h20564.www2.hpe.com / portal/site/hpsc/public/kb/docDisplay
h20566.www2.hpe.com / portal/site/hpsc/public/kb/docDisplay
h20566.www2.hpe.com / portal/site/hpsc/public/kb/docDisplay
help.ecostruxureit.com / display/public/UADCO8x/StruxureWare+Data+Center+Operation+Software+Vulnerability+Fixes
kc.mcafee.com / corporate/index
security.gentoo.org / glsa/201507-15
exploit-db.com / exploits/38640
freebsd.org / security/advisories/FreeBSD-SA-15:12.openssl.asc
tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-20150710-openssl
www1.huawei.com / en/security/psirt/security-bulletins/security-advisories/hw-454058.htm
fortiguard.com / advisory/2015-07-09-cve-2015-1793-openssl-alternative-chains-certificate-forgery
oracle.com / technetwork/security-advisory/cpuapr2016v3-2985753.html
Patch
oracle.com / technetwork/security-advisory/cpujul2016-2881720.html
oracle.com / technetwork/security-advisory/cpuoct2016-2881722.html
oracle.com / technetwork/security-advisory/cpuoct2017-3236626.html
oracle.com / technetwork/topics/security/bulletinjul2015-2511963.html
oracle.com / technetwork/topics/security/cpujan2016-2367955.html
Patch
oracle.com / technetwork/topics/security/cpuoct2015-2367953.html
Patch
securityfocus.com / bid/75652
securityfocus.com / bid/91787
securitytracker.com / id/1032817
slackware.com / security/viewer.php