01 Record

CVE-2021-47284

isdn: mISDN: netjet: Fix crash in nj_probe:

MediumPUBLISHEDCNA: Linux

CNA base score4.7 CVSS v3.xCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

View raw JSON

02 Description

isdn: mISDN: netjet: Fix crash in nj_probe:

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

0.23% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 13.4% of scored records. A rank, not a probability.

NVD base score

4.7 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Analyzed. 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.

04 Metadata

Published

2024-05-21 14:20Z2 YR AGO

Last updated

2026-05-11 13:51Z3 MO AGO

Reserved

2024-05-21

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Medium (CVSS 4.7)

CNA CVSS vector

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

Weaknesses

CWE-400Uncontrolled Resource ConsumptionClass
CWE-590Free of Memory not on the HeapVariant

Data version

5.2

Document digest

ef3cf0667fc2c4fd8aab524239e1cd4b0185419c1fcb1ddae5e028a197328aeb

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxa900845e56617edc005fd8f35bfd5a407aaf96c8 to < 958cb1078ca60d214826fd90a0961a447fade59a, a900845e56617edc005fd8f35bfd5a407aaf96c8 to < 4c1fcb6ec964b44edbf84235134582a5ffae1521, a900845e56617edc005fd8f35bfd5a407aaf96c8 to < a0a37e4454ca1c0b424edc2c9c2487c2c46a1be6, a900845e56617edc005fd8f35bfd5a407aaf96c8 to < bf78e25bd3f487208e042c67c8a31706c2dba265, a900845e56617edc005fd8f35bfd5a407aaf96c8 to < 9d7d4649dc1c53acf76df260fd519db698ed20d7, a900845e56617edc005fd8f35bfd5a407aaf96c8 to < 143fc7220961220eecc04669e5909af8847bf8c8, a900845e56617edc005fd8f35bfd5a407aaf96c8 to < 6249193e03709ea625e10706ecaf17fea0427d3d, a900845e56617edc005fd8f35bfd5a407aaf96c8 to < 9f6f852550d0e1b7735651228116ae9d300f69b3, 2.6.32—

linuxlinux_kernel1da177e4c3f4 to < 958cb1078ca6, 1da177e4c3f4 to < 4c1fcb6ec964, 1da177e4c3f4 to < a0a37e4454ca, 1da177e4c3f4 to < bf78e25bd3f4, 1da177e4c3f4 to < 9d7d4649dc1c, da177e4c3f4 to < 143fc7220961, 1da177e4c3f4 to < 6249193e0370, 1da177e4c3f4 to < 9f6f852550d0—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/958cb1078ca60d214826fd90a0961a447fade59a
git.kernel.orghttps://git.kernel.org/stable/c/4c1fcb6ec964b44edbf84235134582a5ffae1521
git.kernel.orghttps://git.kernel.org/stable/c/a0a37e4454ca1c0b424edc2c9c2487c2c46a1be6
git.kernel.orghttps://git.kernel.org/stable/c/bf78e25bd3f487208e042c67c8a31706c2dba265
git.kernel.orghttps://git.kernel.org/stable/c/9d7d4649dc1c53acf76df260fd519db698ed20d7
git.kernel.orghttps://git.kernel.org/stable/c/143fc7220961220eecc04669e5909af8847bf8c8
git.kernel.orghttps://git.kernel.org/stable/c/6249193e03709ea625e10706ecaf17fea0427d3d
git.kernel.orghttps://git.kernel.org/stable/c/9f6f852550d0e1b7735651228116ae9d300f69b3

01 Record index

CVE-2021-47284

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2021-47284

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References