CVE-2020-7463

mediumpriority · track · 22EPSS 0.004 · 34 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.40% (34th) EPSS

CVSS 4.9 · medium

Is it mine?

13 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

In FreeBSD 12.1-STABLE before r364644, 11.4-STABLE before r364651, 12.1-RELEASE before p9, 11.4-RELEASE before p3, and 11.3-RELEASE before p13, improper handling in the kernel causes a use-after-free bug by sending large user messages from multiple threads on the same SCTP socket. The use-after-free situation may result in unintended kernel behaviour including a kernel panic.

cvss

Technical severity, 0–10. One row per scoring source.

5.5

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.04.9mediumAV:L/AC:L/Au:N/C:N/I:N/A:Cprimary · NVD / NIST USexploitability 3.9 · impact 6.9

v3.15.5mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 3.6

v3.15.1mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-416USprimary

affected products (13)

Products and version ranges known to be affected.

n/a FreeBSD≤ FreeBSD 12.1-RELEASE before p9, 11.4-RELEASE before p3, 11.3-RELEASE before p13enisa_euvdEU
apple icloud< 12.3nvdUScpe:2.3:a:apple:icloud:*:*:*:*:*:*:*:*
apple ipados< 14.5nvdUScpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
apple iphone os< 14.5nvdUScpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
apple itunes< 12.11.3nvdUScpe:2.3:a:apple:itunes:*:*:*:*:*:*:*:*
apple macos11.0 → 11.3nvdUScpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
apple safari< 14.1nvdUScpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
apple tvos< 14.5nvdUScpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
apple watchos< 7.4nvdUScpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*
freebsd freebsd= 11.3nvdUScpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*
freebsd freebsd= 11.4nvdUScpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*
freebsd freebsd= 12.1nvdUScpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*
freebsd freebsd= 12.2nvdUScpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2021-03-26modified 2026-06-17

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+12246 more

references (48)

External citations — patches, advisories, analysis.

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