01 Record

CVE-2021-47328

scsi: iscsi: Fix conn use after free during resets

CriticalPUBLISHEDCNA: Linux

CNA base score9.8 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

View raw JSON

02 Description

scsi: iscsi: Fix conn use after free during resets

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 ImpactpartialSuccessful exploitation gives limited 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

0.76% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 52.6% 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

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.

04 Metadata

Published

2024-05-21 14:35Z2 YR AGO

Last updated

2026-08-05 08:47Z1 MO AGO

Reserved

2024-05-21

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Critical (CVSS 9.8)

CNA CVSS vector

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

Weaknesses

CWE-416Use After FreeVariant

Data version

5.2

Document digest

f9df282c7a9fe08131f8c5bd07a1072338227a8f5914ca39b0e0c2fe61b2d1db

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux660d0831d1494a6837b2f810d08b5be092c1f31d to < bf20d85a88384574fabb3d53ad62a8af57e7ab11, 660d0831d1494a6837b2f810d08b5be092c1f31d to < d04958a348e560938410e04a12fb99da9c7e6a00, 660d0831d1494a6837b2f810d08b5be092c1f31d to < 89812e7957ab0746eab66ed6fc49d52bb4dca250, 660d0831d1494a6837b2f810d08b5be092c1f31d to < f0a031f7c55ffd944fead1ddaf2aa94df9a158c1, 660d0831d1494a6837b2f810d08b5be092c1f31d to < fa9542b35ceb4202e8f8d65f440529a63524dca9, 660d0831d1494a6837b2f810d08b5be092c1f31d to < ec29d0ac29be366450a7faffbcf8cba3a6a3b506, 861a9633c22ee8b484e1b4054995f7e1b94a3834, 0adcec66bce9b7e84847da09ae3f8bc36e753312, 20b38ab5b687df3dbb873cfb0efa946a021f890a, 71b6a23ea944c6a30958bd15a69211e1fd521e1e, 3.2.72 to < 3.3, 3.4.111 to < 3.5, 3.18.22 to < 3.19, 4.1.7 to < 4.2, 4.2—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/bf20d85a88384574fabb3d53ad62a8af57e7ab11
git.kernel.orghttps://git.kernel.org/stable/c/d04958a348e560938410e04a12fb99da9c7e6a00
git.kernel.orghttps://git.kernel.org/stable/c/89812e7957ab0746eab66ed6fc49d52bb4dca250
git.kernel.orghttps://git.kernel.org/stable/c/f0a031f7c55ffd944fead1ddaf2aa94df9a158c1
git.kernel.orghttps://git.kernel.org/stable/c/fa9542b35ceb4202e8f8d65f440529a63524dca9
git.kernel.orghttps://git.kernel.org/stable/c/ec29d0ac29be366450a7faffbcf8cba3a6a3b506

01 Record index

CVE-2021-47328

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2021-47328

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References