01 Record

CVE-2020-36791

net_sched: keep alloc_hash updated after hash allocation

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

net_sched: keep alloc_hash updated after hash allocation

03 Exploitation and scoring

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: 0.19% probability of exploitation activity in the next 30 days.
EPSS percentile: Ranks above 8.5% 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: 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

2025-05-07 13:17Z1 YR AGO

Last updated

2026-08-05 08:44Z1 MO AGO

Reserved

2024-02-26

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-125Out-of-bounds ReadBase
CWE-805Buffer Access with Incorrect Length ValueBase

Data version

5.2

Document digest

bf425417796e230a6ddc98de80d8cae7d044cbf284d5b42cfa2e582dd32b2781

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux73c29d2f6f8ae731b1e09051b69ed3ba2319482b to < d6cdc5bb19b595486fb2e6661e5138d73a57f454, b974ac51f5834a729de252fc5c1c9de9efd79b45 to < c4453d2833671e3a9f6bd52f0f581056c3736386, 6cb448ee493c8a514c9afa0c346f3f5b3227de85 to < 9f8b6c44be178c2498a00b270872a6e30e7c8266, 478c4b2ffd44e5186c7e22ae7c38a86a5b9cfde5 to < 557d015ffb27b672e24e6ad141fd887783871dc2, dd8142a6fa5270783d415292ec8169f4ea2a5468 to < d23faf32e577922b6da20bf3740625c1105381bf, 2c66ff8d08f81bcf8e8cb22e31e39c051b15336a to < bd3ee8fb6371b45c71c9345cc359b94da2ddefa9, 599be01ee567b61f4471ee8078870847d0a11e8e to < 0d1c3530e1bd38382edef72591b78e877e0edcd3, 4.4.214 to < 4.4.218, 4.9.214 to < 4.9.218, 4.14.171 to < 4.14.175, 4.19.103 to < 4.19.114, 5.4.19 to < 5.4.29, 5.5.3 to < 5.5.14—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/d6cdc5bb19b595486fb2e6661e5138d73a57f454
git.kernel.orghttps://git.kernel.org/stable/c/c4453d2833671e3a9f6bd52f0f581056c3736386
git.kernel.orghttps://git.kernel.org/stable/c/9f8b6c44be178c2498a00b270872a6e30e7c8266
git.kernel.orghttps://git.kernel.org/stable/c/557d015ffb27b672e24e6ad141fd887783871dc2
git.kernel.orghttps://git.kernel.org/stable/c/d23faf32e577922b6da20bf3740625c1105381bf
git.kernel.orghttps://git.kernel.org/stable/c/bd3ee8fb6371b45c71c9345cc359b94da2ddefa9
git.kernel.orghttps://git.kernel.org/stable/c/0d1c3530e1bd38382edef72591b78e877e0edcd3
syzkaller.appspot.comhttps://syzkaller.appspot.com/bug?id=ea260693da894e7b078d18fca2c9c0a19b457534
blog.cdthoughts.chhttps://blog.cdthoughts.ch/2021/03/16/syzbot-bug.html

01 Record index

CVE-2020-36791

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2020-36791

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References