CVE-2020-25221

highpriority · track · 31EPSS 0.007 · 52 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.67% (52nd) EPSS

CVSS 7.2 · high

Is it mine?

7 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

get_gate_page in mm/gup.c in the Linux kernel 5.7.x and 5.8.x before 5.8.7 allows privilege escalation because of incorrect reference counting (caused by gate page mishandling) of the struct page that backs the vsyscall page. The result is a refcount underflow. This can be triggered by any 64-bit process that can use ptrace() or process_vm_readv(), aka CID-9fa2dd946743.

cvss

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

7.8

010

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

v2.07.2highAV:L/AC:L/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 3.9 · impact 10

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 5.9

v3.17.1highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-672USprimary

affected products (7)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
linux linux kernel5.7.0 → 5.8.7nvdUScpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
netapp cloud backupall versionsnvdUScpe:2.3:a:netapp:cloud_backup:*:*:*:*:*:*:*:*
netapp hci compute nodeall versionsnvdUScpe:2.3:h:netapp:hci_compute_node:*:*:*:*:*:*:*:*
netapp solidfire & hci management nodeall versionsnvdUScpe:2.3:a:netapp:solidfire_\&_hci_management_node:*:*:*:*:*:*:*:*
netapp solidfire baseboard management controllerall versionsnvdUScpe:2.3:h:netapp:solidfire_baseboard_management_controller:*:*:*:*:*:*:*:*
netapp solidfire, enterprise sds & hci storage nodeall versionsnvdUScpe:2.3:a:netapp:solidfire\,_enterprise_sds_\&_hci_storage_node:*:*:*:*:*:*:*:*

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 2020-09-10modified 2026-06-17

related (175)

Related entries.

ID	severity	EPSS	exploitable	published
CVE-2019-5736US	high8.6	98.5% (100th)	Exploit	2019-02-11
runc through 1.0-rc6, as used in Docker before 18.09.2 and other products, allows attackers to overwrite the host runc binary (and consequently obtain host root access) by leveragi…
CVE-2019-17638US	critical9.4	11.1% (96th)	Exploit	2020-07-09
In Eclipse Jetty, versions 9.4.27.v20200227 to 9.4.29.v20200521, in case of too large response headers, Jetty throws an exception to produce an HTTP 431 error. When this happens, t…
CVE-2020-24030US	critical9.8	2.67% (86th)	Exploit	2020-09-02
ForLogic Qualiex v1 and v3 has weak token expiration. This allows remote unauthenticated privilege escalation and access to sensitive data via token reuse. NOTE: as of 2025-10-14,…
CVE-2024-23638US	medium6.5	60.1% (99th)	—	2024-01-24
Squid is a caching proxy for the Web. Due to an expired pointer reference bug, Squid prior to version 6.6 is vulnerable to a Denial of Service attack against Cache Manager error re…
CVE-2020-11027US	high8.1	13.6% (96th)	Exploit	2020-04-30
In affected versions of WordPress, a password reset link emailed to a user does not expire upon changing the user password. Access would be needed to the email account of the user…

+170 more

references (21)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan