CVE-2021-37576

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

0.57% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 45.1% of scored records. A rank, not a probability.

NVD base score

7.8 (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:H/I:H/A:H

NVD analysis status

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

Red Hat severity

Important. 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

2021-07-26 21:35Z5 YR AGO

Last updated

2024-08-04 01:23Z2 YR AGO

Reserved

2021-07-26

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-787Out-of-bounds WriteBase
• CWE-1284Improper Validation of Specified Quantity in InputBase

Data version

5.1

Document digest

58c71073c793e06a87be8c7fefae58db5ef01d2ba4b2da20484a4dd1ca007839

• lore.kernel.orghttps://lore.kernel.org/linuxppc-dev/87im0x1lqi.fsf%40mpe.ellerman.id.au/T/#ux_refsource_MISC
• git.kernel.orghttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f62f3c20647ebd5fb6ecb8f0b477b9281c44c10ax_refsource_MISC
• www.openwall.com[oss-security] 20210727 Re: Linux kernel: powerpc: KVM guest to host memory corruptionhttp://www.openwall.com/lists/oss-security/2021/07/27/2mailing-listx_refsource_MLIST
• lists.fedoraproject.orgFEDORA-2021-817b3d47d2https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z2YZ2DNURMYYVDT2NYAFDESJC35KCUDS/vendor-advisoryx_refsource_FEDORA
• lists.fedoraproject.orgFEDORA-2021-12618d9b08https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WDFA7DSQIPM7XPNXJBXFWXHJFVUBCAG6/vendor-advisoryx_refsource_FEDORA
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20210917-0005/x_refsource_CONFIRM
• www.debian.orgDSA-4978https://www.debian.org/security/2021/dsa-4978vendor-advisoryx_refsource_DEBIAN