CVE-2021-36086

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

0.59% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 48.3% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-10-14.

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

2021-07-01 02:49Z5 YR AGO

Last updated

2026-10-14 11:49Z15 DAYS AGO

Reserved

2021-07-01

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-416Use After FreeVariant

Data version

5.2

Document digest

d972ee557957f4421fc6bfb0a36e11d6b418876652b1f8dce1a67d828e9d2a08

• github.comhttps://github.com/google/oss-fuzz-vulns/blob/main/vulns/selinux/OSV-2021-536.yamlx_refsource_MISC
• bugs.chromium.orghttps://bugs.chromium.org/p/oss-fuzz/issues/detail?id=32177x_refsource_MISC
• github.comhttps://github.com/SELinuxProject/selinux/commit/c49a8ea09501ad66e799ea41b8154b6770fec2c8x_refsource_MISC
• lists.fedoraproject.orgFEDORA-2021-67efe88c29https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U7ZYR3PIJ75N6U2IONJWCKZ5L2NKJTGR/vendor-advisoryx_refsource_FEDORA
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20250207-0004/
• lists.debian.orghttps://lists.debian.org/debian-lts-announce/2024/10/msg00021.html
• cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-398330.html
• cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-202008.html