CVE-2021-3527

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

0.37% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 31.0% of scored records. A rank, not a probability.

NVD base score

5.5 (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:H

NVD analysis status

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

Red Hat severity

Low. 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

2021-05-26 21:13Z5 YR AGO

Last updated

2024-08-03 17:01Z2 YR AGO

Reserved

2021-04-30

Assigning CNA

redhat

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-770Allocation of Resources Without Limits or ThrottlingBase

Data version

5.1

Document digest

05c10c5d9d5003da523a639e5d58c8c1e2f4587c7467dd968e071e65a0d88b30

• bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1955695x_refsource_MISC
• www.openwall.comhttps://www.openwall.com/lists/oss-security/2021/05/05/5x_refsource_MISC
• gitlab.comhttps://gitlab.com/qemu-project/qemu/-/commit/7ec54f9eb62b5d177e30eb8b1cad795a5f8d8986x_refsource_MISC
• gitlab.comhttps://gitlab.com/qemu-project/qemu/-/commit/05a40b172e4d691371534828078be47e7fff524cx_refsource_MISC
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20210708-0008/x_refsource_CONFIRM
• lists.debian.org[debian-lts-announce] 20210902 [SECURITY] [DLA 2753-1] qemu security updatehttps://lists.debian.org/debian-lts-announce/2021/09/msg00000.htmlmailing-listx_refsource_MLIST
• security.gentoo.orgGLSA-202208-27https://security.gentoo.org/glsa/202208-27vendor-advisoryx_refsource_GENTOO
• lists.debian.org[debian-lts-announce] 20220905 [SECURITY] [DLA 3099-1] qemu security updatehttps://lists.debian.org/debian-lts-announce/2022/09/msg00008.htmlmailing-listx_refsource_MLIST