`CVE-2015-1793` OpenSSL

Affected software	OpenSSL
Severity	6.5 Medium CVSS 3.0 2 scores
Weakness	CWE-254
Published	9 Jul 2015
Updated	17 Jun 2026

Description

The X509_verify_cert function in crypto/x509/x509_vfy.c in OpenSSL 1.0.1n, 1.0.1o, 1.0.2b, and 1.0.2c does not properly process X.509 Basic Constraints cA values during identification of alternative certificate chains, which allows remote attackers to spoof a Certification Authority role and trigger unintended certificate verifications via a valid leaf certificate.

Exploitation status

Working exploit published

A reviewed exploit catalogue lists ready-to-run exploit code for this CVE.

CISA KEV not listed
VulnCheck KEV not listed
CISA Vulnrichment no assessment published
Indexed PoC 1 indexed Published artifacts you can open, in Exploit-DB; first seen 2015-11-05.
EPSS 58% chance in 30 days A model's forecast, not a report of exploitation. Higher than 99% of all scored CVEs.

Index	Artifact	Stars	First seen
Exploit-DB	OpenSSL - Alternative Chains Certificate Forgery		2015-11-05

Index

Artifact

Stars

First seen

Exploit-DB

OpenSSL - Alternative Chains Certificate Forgery

2015-11-05

Waratek protection

Outside Waratek scope

A Java vulnerability, but not one Waratek protects. It affects only Java on a user's desktop (applets, Web Start, JavaFX, the installer), sits in a product the Waratek agent can't be installed into, or is in a package we don't expect in business applications. The decision below says which.

Protection none
Action not pursued none
Review human Researcher
Record active

Decided by	Manual classification of this CVE in the legacy dataset
Finding	A manual classification set this CVE's status to Outside Waratek scope, but the CVE names a tracked product.

Decided by

Manual classification of this CVE in the legacy dataset

Finding

A manual classification set this CVE's status to Outside Waratek scope, but the CVE names a tracked product.

CVSS

6.5 MEDIUM v3.0 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N 2 metrics

We show the highest score from the newest CVSS version. Scores from different versions can't be compared, and the first score listed is sometimes a 0.0 placeholder.

Version Score Band Vector Assigner Type

CVSS 3.0 6.5 MEDIUM CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N NVD Primary published

CVSS 2.0 6.4 none AV:N/AC:L/Au:N/C:P/I:P/A:N NVD Primary

Version	Score	Band	Vector	Assigner	Type
CVSS 3.0	6.5	MEDIUM	`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N`	NVD	Primary	published
CVSS 2.0	6.4	none	`AV:N/AC:L/Au:N/C:P/I:P/A:N`	NVD	Primary

Affected software and releases

Oracle advisories

Advisory	Type	Quarter	Products Oracle names in its risk matrix
Oracle Critical Patch Update October 2016 ↗	CPU	2016-Q4	Oracle JD Edwards Products / GUI / World Vision (A9.4)
Oracle Critical Patch Update July 2016 ↗	CPU	2016-Q3	Oracle Sun Systems Products Suite / OpenSSL (3.0, 3.1, 3.2)
Oracle Critical Patch Update April 2016 ↗	CPU	2016-Q2	Oracle JD Edwards Products / OneWorld Tools Security (9.1, 9.2) Oracle Sun Systems Products Suite / Firmware (Versions prior to 2.0.0.6)
Oracle Critical Patch Update January 2016 ↗	CPU	2016-Q1	Oracle Enterprise Manager Grid Control / Discovery Framework (12.1.0.4, 12.1.0.5) Oracle Enterprise Manager Grid Control / Networking (Prior to 12.1.4, 12.2.0, 12.2.1, 12.3.0) Oracle Fusion Middleware / BI Platform Security (11.1.1.7.0, 11.1.1.9.0) Oracle Fusion Middleware / SSL/TLS (12.1.1.0) Oracle Fusion Middleware / SSL/TLS (7.3.0.0, 7.4.0.0, 7.5.0.0, 7.6.0.0) Oracle Sun Systems Products Suite / Firmware (Versions prior to 1.2.2.13) Oracle Sun Systems Products Suite / Firmware (Versions prior to 1.2.2.15) Oracle Sun Systems Products Suite / Firmware (Versions prior to 1.3.1.13)
Oracle Critical Patch Update October 2015 ↗	CPU	2015-Q4	Oracle Enterprise Manager Grid Control / OSS Support Tools (Prior to 8.8.15.7.15) Oracle MySQL / MySQL Server (5.6.25 and earlier) Oracle's note: This fix also addresses CVE-2015-0286, CVE-2015-0288 and CVE-2015-1789. Oracle Supply Chain Products Suite / Oracle Agile Engineering Data Management (6.1.2.2, 6.1.3.0, 6.2.0.0)

Advisory

Type

Quarter

Products Oracle names in its risk matrix

Oracle Critical Patch Update October 2016 ↗

CPU

2016-Q4

Oracle JD Edwards Products / GUI / World Vision (A9.4)

Oracle Critical Patch Update July 2016 ↗

CPU

2016-Q3

Oracle Sun Systems Products Suite / OpenSSL (3.0, 3.1, 3.2)

Oracle Critical Patch Update April 2016 ↗

CPU

2016-Q2

Oracle JD Edwards Products / OneWorld Tools Security (9.1, 9.2)
Oracle Sun Systems Products Suite / Firmware (Versions prior to 2.0.0.6)

Oracle Critical Patch Update January 2016 ↗

CPU

2016-Q1

Oracle Enterprise Manager Grid Control / Discovery Framework (12.1.0.4, 12.1.0.5)
Oracle Enterprise Manager Grid Control / Networking (Prior to 12.1.4, 12.2.0, 12.2.1, 12.3.0)
Oracle Fusion Middleware / BI Platform Security (11.1.1.7.0, 11.1.1.9.0)
Oracle Fusion Middleware / SSL/TLS (12.1.1.0)
Oracle Fusion Middleware / SSL/TLS (7.3.0.0, 7.4.0.0, 7.5.0.0, 7.6.0.0)
Oracle Sun Systems Products Suite / Firmware (Versions prior to 1.2.2.13)
Oracle Sun Systems Products Suite / Firmware (Versions prior to 1.2.2.15)
Oracle Sun Systems Products Suite / Firmware (Versions prior to 1.3.1.13)

Oracle Critical Patch Update October 2015 ↗

CPU

2015-Q4

Oracle Enterprise Manager Grid Control / OSS Support Tools (Prior to 8.8.15.7.15)
Oracle MySQL / MySQL Server (5.6.25 and earlier)
Oracle's note: This fix also addresses CVE-2015-0286, CVE-2015-0288 and CVE-2015-1789.
Oracle Supply Chain Products Suite / Oracle Agile Engineering Data Management (6.1.2.2, 6.1.3.0, 6.2.0.0)

Oracle components and versions

Family	Component	Versions, as Oracle lists them	Read as
Oracle Enterprise Manager Grid Control	Discovery Framework	12.1.0.4, 12.1.0.5	12.1.0.4 · 12.1.0.5
Oracle Enterprise Manager Grid Control	Networking	Prior to 12.1.4, 12.2.0, 12.2.1, 12.3.0	12.2.0 · 12.2.1 · 12.3.0
Oracle Enterprise Manager Grid Control	OSS Support Tools	Prior to 8.8.15.7.15
Oracle Fusion Middleware	BI Platform Security	11.1.1.7.0, 11.1.1.9.0	11.1.1.7.0 · 11.1.1.9.0
Oracle Fusion Middleware	SSL/TLS	7.3.0.0, 7.4.0.0, 7.5.0.0, 7.6.0.0	7.3.0.0 · 7.4.0.0 · 7.5.0.0 · 7.6.0.0 · 12.1.1.0
Oracle JD Edwards Products	GUI / World Vision	A9.4
Oracle JD Edwards Products	OneWorld Tools Security	9.1, 9.2	9.1 · 9.2
Oracle MySQL	MySQL Server	5.6.25 and earlier
Oracle Sun Systems Products Suite	Firmware	Versions prior to 1.2.2.13	1.2.2.13 · 1.2.2.15 · 1.3.1.13 · 2.0.0.6
Oracle Sun Systems Products Suite	OpenSSL	3.0, 3.1, 3.2	3.0 · 3.1 · 3.2
Oracle Supply Chain Products Suite	Oracle Agile Engineering Data Management	6.1.2.2, 6.1.3.0, 6.2.0.0	6.1.2.2 · 6.1.3.0 · 6.2.0.0

Family

Component

Versions, as Oracle lists them

Read as

Oracle Enterprise Manager Grid Control

Discovery Framework

12.1.0.4, 12.1.0.5

12.1.0.4 · 12.1.0.5

Oracle Enterprise Manager Grid Control

Networking

Prior to 12.1.4, 12.2.0, 12.2.1, 12.3.0

12.2.0 · 12.2.1 · 12.3.0

Oracle Enterprise Manager Grid Control

OSS Support Tools

Prior to 8.8.15.7.15

Oracle Fusion Middleware

BI Platform Security

11.1.1.7.0, 11.1.1.9.0

11.1.1.7.0 · 11.1.1.9.0

Oracle Fusion Middleware

SSL/TLS

7.3.0.0, 7.4.0.0, 7.5.0.0, 7.6.0.0

7.3.0.0 · 7.4.0.0 · 7.5.0.0 · 7.6.0.0 · 12.1.1.0

Oracle JD Edwards Products

GUI / World Vision

A9.4

Oracle JD Edwards Products

OneWorld Tools Security

9.1, 9.2

9.1 · 9.2

Oracle MySQL

MySQL Server

5.6.25 and earlier

Oracle Sun Systems Products Suite

Firmware

Versions prior to 1.2.2.13

1.2.2.13 · 1.2.2.15 · 1.3.1.13 · 2.0.0.6

Oracle Sun Systems Products Suite

OpenSSL

3.0, 3.1, 3.2

3.0 · 3.1 · 3.2

Oracle Supply Chain Products Suite

Oracle Agile Engineering Data Management

6.1.2.2, 6.1.3.0, 6.2.0.0

6.1.2.2 · 6.1.3.0 · 6.2.0.0

Products and versions

4 products, 10 version entries

Source	Vendor	Product	Scheme	Affected versions
nvd	openssl	openssl	generic	1.0.1n · 1.0.1o · 1.0.2b · 1.0.2c
nvd	oracle	jd edwards enterpriseone tools	generic	9.1 · 9.2
nvd	oracle	opus 10g ethernet switch family	generic	≤ 2.0.0.6
nvd	oracle	supply chain products suite	generic	6.1.2.2 · 6.1.3.0 · 6.2.0

Source

Vendor

Product

Scheme

Affected versions

nvd

openssl

generic

1.0.1n · 1.0.1o · 1.0.2b · 1.0.2c

nvd

oracle

jd edwards enterpriseone tools

generic

9.1 · 9.2

nvd

oracle

opus 10g ethernet switch family

generic

≤ 2.0.0.6

nvd

oracle

supply chain products suite

generic

6.1.2.2 · 6.1.3.0 · 6.2.0

Earlier manual review

A reviewer classified this CVE in an older dataset. We kept the labels and products below, but not the reviewer's reasoning.

## Manual Classification Context **Labels:** HTTP, ORACLE EXPLORER, MYSQL PROTOCOL, INSTALL, NETWORKING, SEE NOTE 3, NO AUTH REMOTE EXPLOIT, DISCOVERY FRAMEWORK, GUI / WORLD VISION, HTTPS, FIRMWARE, SERVER : SECURITY : ENCRYPTION, SSL/TLS, ONEWORLD TOOLS SECURITY, OPENSSL, BI PLATFORM SECURITY **Products:** ILOM, ORACLE AGILE ENGINEERING DATA MANAGEMENT, SUN BLADE 6000 ETHERNET SWITCHED NEM 24P 10GE, ORACLE SWITCH ES1-24, ORACLE FUSION MIDDLEWARE, ORACLE TUXEDO, SUN NETWORK 10GE SWITCH 72P, ORACLE ENDECA SERVER, ORACLE ETHERNET SWITCH ES2-72, ORACLE MYSQL, ORACLE ENTERPRISE MANAGER GRID CONTROL, ORACLE SUN SYSTEMS PRODUCTS SUITE, ENTERPRISE MANAGER OPS CENTER, OSS SUPPORT TOOLS, ORACLE ETHERNET SWITCH ES2-64, ENTERPRISE MANAGER BASE PLATFORM, ORACLE SUPPLY CHAIN PRODUCTS SUITE, MYSQL SERVER, OPENSSL, JD EDWARDS WORLD SECURITY, JD EDWARDS ENTERPRISEONE TOOLS, ORACLE BUSINESS INTELLIGENCE ENTERPRISE EDITION, ORACLE JD EDWARDS PRODUCTS

References

URL	Tags
http://fortiguard.com/advisory/2015-07-09-cve-2015-1793-openssl-alternative-chains-certificate-forgery
http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2015-008.txt.asc
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10694
http://lists.fedoraproject.org/pipermail/package-announce/2015-July/161747.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-July/161782.html
http://marc.info/?l=bugtraq&m=143880121627664&w=2
http://marc.info/?l=bugtraq&m=144370846326989&w=2
http://openssl.org/news/secadv_20150709.txt	Vendor Advisory
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150710-openssl
http://www.fortiguard.com/advisory/2015-07-09-cve-2015-1793-openssl-alternative-chains-certificate-forgery

URL

Timeline

Published	2015-07-09	By the CVE Program.
NVD record modified	2026-06-17	NVD's own last-modified date for this record.

Published

2015-07-09

By the CVE Program.

NVD record modified

2026-06-17

NVD's own last-modified date for this record.

How VRT decided (5 of 24 rules ran)

5 of 24 rules ran. The rest didn't run because an earlier rule had already settled the CVE.

# Rule Outcome Status Detail

identity: Does this identifier describe a vulnerability at all? the first rule that matches decides

1 rejected no match CVE Program withdrawal of this identifier

scope: Is it a vulnerability Waratek protects? the first rule that matches decides

2 armr-patch-file no match An ARMR patch file on disk for this CVE

3 armr-secure-rule-file no match An ARMR security-rule template on disk for this CVE

4 manual-classification no match A researcher's recorded decision for this specific CVE

5 manual classification decided it matched Outside Waratek scope Found in legacy manual classifications

6 non-java-upstream not reached A root cause in non-Java code: an OS kernel, a C library, or a bundled runtime

7 oracle-component not reached The defect being in a component of a tracked product the agent does not reach: JavaFX, the Java SE installer, the JInitiator browser plug-in, the native WebLogic proxy plug-in, or a native part of Oracle Application Server or Collaboration Suite (HTTP Server, Web Cache, Internet Directory, mail and calendar servers). Oracle gives these no CPE of their own and names them only in the description.

8 java-client-side not reached Oracle's own risk-matrix note saying the CVE is reached only through untrusted code in the Java sandbox (applets, Web Start) or only through a client installation of Java, so a server running its own trusted code is not exposed

9 osv-maven not reached An OSV.dev record of this CVE affecting a package published to Maven Central. When every such package is one business applications do not use (Minecraft mods and launchers, Fastjson) and no tracked product is named by CPE, it settles the CVE as Outside Waratek scope instead

10 cna-maven-package not reached An affected Maven artifact named by the CNA itself

11 known-cpe-product not reached An NVD CPE naming a product ARMR tracks

12 cna-cpe-product not reached A CPE the CNA published naming a tracked product. Oracle publishes these on advisory day, months before NVD.

13 oracle-advisory-family not reached A tracked product family named in Oracle's own risk matrix. CPE cannot carry a suite name, only a module.

14 cna-named-product not reached A tracked product named in words by the CVE's own CNA, on a record with no CPE yet. Apache and Eclipse publish these on advisory day, before NVD adds CPE data.

15 non-deployable-product not reached The only affected product being a sealed appliance image, where Java runs but no -javaagent can be attached

16 unmatched-product not reached No tracked product matched above, and none present at all

disposition: What do we do about one that is? every rule runs

17 patch-hint not reached A reference pointing at the upstream fix: a commit, a PR, a Red Hat bug

18 open-source-maven not reached The affected package being open source on Maven, so the fix can be read

19 poc-derivable not reached An indexed exploit clearing the evidence bar to reverse-engineer, where there is no source to read

20 no-exploit not reached Nothing to build a rule from yet: no published exploit, no CISA record of exploitation and no source-level change to read

21 secure-rule-match not reached A vulnerability class already blocked by an ARMR security rule

22 exploited-no-fix-or-poc not reached Somebody exploiting this CVE (a CISA or VulnCheck KEV listing, or a CISA verdict of active exploitation), with no fix, source code or PoC to build a rule from

23 below-action-threshold not reached Medium or Low severity, no CISA or VulnCheck KEV listing, no PoC clearing the evidence bar, no CISA verdict, no Oracle advisory

24 no-exploit-published not reached Exploit code for this candidate, published in a reviewed catalogue or a GitHub repository with 5 or more stars, or in use per CISA or VulnCheck; not only a CISA verdict, a forecast, or nothing at all

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