Medium 6.5Published Jul 9, 2015

CVE-2015-1793The 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…

Updated under an hour ago (Nov 2, 2026, 12:10 AM ET)

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It affects oracle supply_chain_products_suite and 3 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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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.

CVSS: 6.5 MEDIUM (v3.0, NVD)CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Weakness (CWE): CWE-254
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Modified
Record last updated: Jun 16, 2026
First seen by InfoSec Signals: Nov 1, 2026

Affected products

Affected products

oracle supply_chain_products_suite oracle:supply_chain_products_suite	6.1.2.2; 6.1.3.0; 6.2.0	NVD
oracle jd_edwards_enterpriseone_tools oracle:jd_edwards_enterpriseone_tools	9.1; 9.2	NVD
openssl openssl openssl:openssl	1.0.1n; 1.0.1o; 1.0.2b; 1.0.2c	NVD
oracle opus_10g_ethernet_switch_family oracle:opus_10g_ethernet_switch_family	through 2.0.0.6	NVD

References

References

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
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The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.