CVE-2015-7801

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

5.38% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 92.1% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/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

2016-04-20 16:00Z10 YR AGO

Last updated

2024-08-06 07:58Z2 YR AGO

Reserved

2015-10-09

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-416Use After FreeVariant

Data version

5.1

Document digest

71485bfa5065a0742b805569f38c2c454dfc1650d18c9b7d5d3c6e5a49db7140

• www.openwall.com[oss-security] 20150916 CVE Request: Use-after-free in optipng 0.6.4http://www.openwall.com/lists/oss-security/2015/09/16/1mailing-listx_refsource_MLIST
• bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1264015x_refsource_CONFIRM
• www.ubuntu.comUSN-2951-1http://www.ubuntu.com/usn/USN-2951-1vendor-advisoryx_refsource_UBUNTU