CVE-2021-3506

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

0.36% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 30.6% 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:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

NVD analysis status

Analyzed. NVD last modified this record on 2026-09-01.

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

2021-04-19 21:11Z5 YR AGO

Last updated

2024-08-03 16:53Z2 YR AGO

Reserved

2021-04-19

Assigning CNA

redhat

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-125Out-of-bounds ReadBase

Data version

5.1

Document digest

cc3dccd45019a4cc8a82a55e07d624bfafdcf8be998dc270a2617b72c48497c2

• bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1944298x_refsource_MISC
• www.openwall.comhttps://www.openwall.com/lists/oss-security/2021/03/28/2x_refsource_MISC
• www.mail-archive.comhttps://www.mail-archive.com/linux-kernel%40vger.kernel.org/msg2520013.htmlx_refsource_MISC
• www.openwall.com[oss-security] 20210508 Re: Linux kernel: f2fs: out-of-bounds memory access bughttp://www.openwall.com/lists/oss-security/2021/05/08/1mailing-listx_refsource_MLIST
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20210611-0007/x_refsource_CONFIRM
• lists.debian.org[debian-lts-announce] 20210623 [SECURITY] [DLA 2690-1] linux-4.19 security updatehttps://lists.debian.org/debian-lts-announce/2021/06/msg00019.htmlmailing-listx_refsource_MLIST