01 Record

CVE-2021-47259

NFS: Fix use-after-free in nfs4_init_client()

HighPUBLISHEDCNA: Linux

CNA base score7.8 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

View raw JSON

02 Description

NFS: Fix use-after-free in nfs4_init_client()

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.71% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 50.8% 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 2026-08-04.

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.

04 Metadata

Published

2024-05-21 14:19Z2 YR AGO

Last updated

2026-08-05 08:47Z1 MO AGO

Reserved

2024-05-21

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.8)

CNA CVSS vector

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

Weaknesses

CWE-416Use After FreeVariant

Data version

5.2

Document digest

e3088dab7909850037dad67775d056244fa510b345876209c1a2d1bd31186ceb

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux8dcbec6d20eb881ba368d0aebc3a8a678aebb1da to < c7eab9e2d7b4e983ce280276fb920af649955897, 8dcbec6d20eb881ba368d0aebc3a8a678aebb1da to < 42c10b0db064e45f5c5ae7019bbf2168ffab766c, 8dcbec6d20eb881ba368d0aebc3a8a678aebb1da to < 3e3c7ebbfac152d08be75c92802a64a1f6471a15, 8dcbec6d20eb881ba368d0aebc3a8a678aebb1da to < c3b6cf64dfe4ef96e7341508d50d6998da7062c7, 8dcbec6d20eb881ba368d0aebc3a8a678aebb1da to < 72651c6579a25317a90536181d311c663d0329ab, 8dcbec6d20eb881ba368d0aebc3a8a678aebb1da to < 476bdb04c501fc64bf3b8464ffddefc8dbe01577, 4.13—

linuxlinux_kernel4.13, 8dcbec6d20eb to < 476bdb04c501—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/c7eab9e2d7b4e983ce280276fb920af649955897
git.kernel.orghttps://git.kernel.org/stable/c/42c10b0db064e45f5c5ae7019bbf2168ffab766c
git.kernel.orghttps://git.kernel.org/stable/c/3e3c7ebbfac152d08be75c92802a64a1f6471a15
git.kernel.orghttps://git.kernel.org/stable/c/c3b6cf64dfe4ef96e7341508d50d6998da7062c7
git.kernel.orghttps://git.kernel.org/stable/c/72651c6579a25317a90536181d311c663d0329ab
git.kernel.orghttps://git.kernel.org/stable/c/476bdb04c501fc64bf3b8464ffddefc8dbe01577

01 Record index

CVE-2021-47259

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2021-47259

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References