CVE-2021-28041

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

3.51% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 89.0% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

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

2021-03-05 19:07Z5 YR AGO

Last updated

2026-10-14 11:39Z15 DAYS AGO

Reserved

2021-03-05

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-415Double FreeVariant
• CWE-416Use After FreeVariant

Data version

5.2

Document digest

3f57cd9a1accd9fa832320542977ef923071af1e7001e78e84a742d968b7f17d

• www.openssh.comhttps://www.openssh.com/security.htmlx_refsource_MISC
• www.openwall.comhttps://www.openwall.com/lists/oss-security/2021/03/03/1x_refsource_MISC
• github.comhttps://github.com/openssh/openssh-portable/commit/e04fd6dde16de1cdc5a4d9946397ff60d96568dbx_refsource_MISC
• www.openssh.comhttps://www.openssh.com/txt/release-8.5x_refsource_MISC
• lists.fedoraproject.orgFEDORA-2021-f68a5a75bahttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TXST2CML2MWY3PNVUXX7FFJE3ATJMNVZ/vendor-advisoryx_refsource_FEDORA
• security.gentoo.orgGLSA-202105-35https://security.gentoo.org/glsa/202105-35vendor-advisoryx_refsource_GENTOO
• lists.fedoraproject.orgFEDORA-2021-1d3698089dhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KQWGII3LQR4AOTPPFXGMTYE7UDEWIUKI/vendor-advisoryx_refsource_FEDORA
• www.oracle.comhttps://www.oracle.com//security-alerts/cpujul2021.htmlx_refsource_MISC
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20210416-0002/x_refsource_CONFIRM
• cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-398330.html