CVE-2015-8391

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

6.40% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 93.5% of scored records. A rank, not a probability.

NVD base score

9.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2015-12-02 00:00Z10 YR AGO

Last updated

2024-08-06 08:13Z2 YR AGO

Reserved

2015-12-01

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass
• CWE-407Inefficient Algorithmic ComplexityClass

Data version

5.1

Document digest

66c5cb8e88a8481d2378adf8e2401f856e26f47b01bc03c72062117e4d3a7bb9

• www.openwall.com[oss-security] 20151128 Re: Heap Overflow in PCREhttp://www.openwall.com/lists/oss-security/2015/11/29/1mailing-list
• access.redhat.comRHSA-2016:1132https://access.redhat.com/errata/RHSA-2016:1132vendor-advisory
• www.securityfocus.com82990http://www.securityfocus.com/bid/82990vdb-entry
• www.oracle.comhttp://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
• www-01.ibm.comhttp://www-01.ibm.com/support/docview.wss?uid=isg3T1023886
• rhn.redhat.comRHSA-2016:1025http://rhn.redhat.com/errata/RHSA-2016-1025.htmlvendor-advisory
• rhn.redhat.comRHSA-2016:2750http://rhn.redhat.com/errata/RHSA-2016-2750.htmlvendor-advisory
• lists.fedoraproject.orgFEDORA-2015-eb896290d3http://lists.fedoraproject.org/pipermail/package-announce/2016-January/174931.htmlvendor-advisory
• h20566.www2.hpe.comhttps://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731
• bto.bluecoat.comhttps://bto.bluecoat.com/security-advisory/sa128
• vcs.pcre.orghttp://vcs.pcre.org/pcre/code/trunk/ChangeLog?view=markup
• security.gentoo.orgGLSA-201607-02https://security.gentoo.org/glsa/201607-02vendor-advisory
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20230216-0002/