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CVE-2015-1792

23
FAUCET Score

CVE-2015-1792 is a denial-of-service vulnerability affecting OpenSSL versions prior to 0.9.8zg, 1.0.0s, 1.0.1n, and 1.0.2b. It allows remote attackers to trigger an infinite loop by providing an unrecognized X.660 OID for a hash function, leading to a NULL BIO data structure. This vulnerability has a CVSS score of 5.0, indicating a medium severity with low attack complexity and potential for partial availability impact. While there is no known active exploitation or public exploit code, it has received some community discussion and media coverage, including a SecurityWeek article.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.9.8zfCPE matchmatch criteria
cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
1.0.0CPE matchmatch criteria
cpe:2.3:a:openssl:openssl:1.0.0:*:*:*:*:*:*:*
1.0.0CPE matchmatch criteria
cpe:2.3:a:openssl:openssl:1.0.0:beta1:*:*:*:*:*:*
1.0.0CPE matchmatch criteria
cpe:2.3:a:openssl:openssl:1.0.0:beta2:*:*:*:*:*:*
1.0.0CPE matchmatch criteria
cpe:2.3:a:openssl:openssl:1.0.0:beta3:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
22.48%
Probability of exploitation in next 30 days
EPSS Percentile
97.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.2248 is in the 98th percentile among its peer group of 23,725 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, 0.1 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 (4)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: openssl-0:1.0.1e-30.el6_6.11
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: openssl-1:1.0.1e-42.ael7b_1.8
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: openssl098e
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: openssl098e

Vendor Advisories (1)

redhatCVE-2015-1792Moderate

OpenSSL: CMS verify infinite loop with unknown hash function

Jun 11, 2015

References

fortiguard.com / advisory/openssl-vulnerabilities-june-2015
ftp.netbsd.org / pub/NetBSD/security/advisories/NetBSD-SA2015-008.txt.asc
kb.juniper.net / InfoCenter/index
lists.apple.com / archives/security-announce/2015/Aug/msg00001.html
lists.fedoraproject.org / pipermail/package-announce/2015-June/160436.html
lists.fedoraproject.org / pipermail/package-announce/2015-June/160647.html
lists.opensuse.org / opensuse-security-announce/2015-06/msg00023.html
lists.opensuse.org / opensuse-security-announce/2015-06/msg00024.html
lists.opensuse.org / opensuse-security-announce/2015-06/msg00026.html
lists.opensuse.org / opensuse-security-announce/2015-07/msg00004.html
lists.opensuse.org / opensuse-security-announce/2015-07/msg00006.html
lists.opensuse.org / opensuse-security-announce/2015-07/msg00007.html
lists.opensuse.org / opensuse-security-announce/2015-07/msg00037.html
lists.opensuse.org / opensuse-security-announce/2016-03/msg00011.html
marc.info
marc.info
marc.info
rhn.redhat.com / errata/RHSA-2015-1115.html
bto.bluecoat.com / security-advisory/sa98
cert-portal.siemens.com / productcert/pdf/ssa-412672.pdf
github.com / openssl/openssl/commit/cd30f03ac5bf2962f44bd02ae8d88245dff2f12c
h20566.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
h20566.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
kc.mcafee.com / corporate/index
openssl.org / news/secadv/20150611.txt
security.gentoo.org / glsa/201506-02
support.apple.com / kb/HT205031
support.citrix.com / article/CTX216642
openssl.org / news/secadv_20150611.txt
Vendor Advisory
tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-20150612-openssl
debian.org / security/2015/dsa-3287
fortiguard.com / advisory/2015-06-11-fortinet-vulnerability-openssl-vulnerabilities-june-2015
fortiguard.com / advisory/openssl-vulnerabilities-june-2015
oracle.com / technetwork/security-advisory/cpujul2016-2881720.html
oracle.com / technetwork/security-advisory/cpujul2017-3236622.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
oracle.com / technetwork/topics/security/cpuoct2015-2367953.html
securityfocus.com / bid/75154
securityfocus.com / bid/91787
securitytracker.com / id/1032564
ubuntu.com / usn/USN-2639-1