WaratekVRT Sign in

CVE-2020-25669

Affected software3 products, listed below
Severity7.8 High CVSS 3.1 2 scores
WeaknessUse after free (CWE-416)
Published26 May 2021
Updated17 Jun 2026

Description

A vulnerability was found in the Linux Kernel where the function sunkbd_reinit having been scheduled by sunkbd_interrupt before sunkbd being freed. Though the dangling pointer is set to NULL in sunkbd_disconnect, there is still an alias in sunkbd_reinit causing Use After Free.

Exploitation status

No public exploit

No exploit has been reported in the sources we check. Published 5 years ago.
  • CISA KEV not listed
  • VulnCheck KEV not listed
  • CISA Vulnrichment no assessment published
  • Indexed PoC none indexed
  • EPSS 0.63% chance in 30 days

Waratek protection

Outside Waratek scope

A Java vulnerability, but not one Waratek protects. It affects only Java on a user's desktop (applets, Web Start, JavaFX, the installer), sits in a product the Waratek agent can't be installed into, or is in a package we don't expect in business applications. The decision below says which.

  • Protection none
  • Action not pursued none
  • Review human Researcher
  • Record active
Decided by Manual classification of this CVE in the legacy dataset
Finding A manual classification set this CVE's status to Outside Waratek scope, but the CVE names a tracked product.

CVSS

7.8 HIGH v3.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H 2 metrics

We show the highest score from the newest CVSS version. Scores from different versions can't be compared, and the first score listed is sometimes a 0.0 placeholder.

VersionScoreBandVectorAssignerType
CVSS 3.1 7.8 HIGH CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H NVD Primary published
CVSS 2.0 7.2 none AV:L/AC:L/Au:N/C:C/I:C/A:C NVD Primary

Affected software and releases

Products and versions

13 products, 18 version entries
SourceVendorProductSchemeAffected versions
nvd debian debian linux generic 9.0
nvd linux linux kernel generic ＜ 4.4.245 · ≥ 4.5 and ＜ 4.9.245 · ≥ 4.10 and ＜ 4.14.208 · ≥ 4.15 and ＜ 4.19.159 · ≥ 4.20 and ＜ 5.4.79 · ≥ 5.5 and ＜ 5.9.10
nvd netapp cloud backup generic any version
nvd netapp h300e firmware generic any version
nvd netapp h300s firmware generic any version
nvd netapp h410c firmware generic any version
nvd netapp h410s firmware generic any version
nvd netapp h500e firmware generic any version
nvd netapp h500s firmware generic any version
nvd netapp h700e firmware generic any version
nvd netapp h700s firmware generic any version
nvd netapp solidfire \& hci management node generic any version
nvd netapp solidfire baseboard management controller generic any version

References

URLTags
http://www.openwall.com/lists/oss-security/2020/11/05/2 Exploit, Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2020/11/20/5 Exploit, Mailing List, Third Party Advisory
https://github.com/torvalds/linux/commit/77e70d351db7de07a46ac49b87a6c3c7a60fca7e Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html Mailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html Mailing List, Third Party Advisory
https://security.netapp.com/advisory/ntap-20210702-0006/ Third Party Advisory
https://www.openwall.com/lists/oss-security/2020/11/05/2%2C
https://www.openwall.com/lists/oss-security/2020/11/20/5%2C

Timeline
Published2021-05-26By the CVE Program.
NVD record modified2026-06-17NVD's own last-modified date for this record.