CVE-2021-26708
A local privilege escalation was discovered in the Linux kernel before 5.10.13.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.60%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A local privilege escalation was discovered in the Linux kernel before 5.10.13. Multiple race conditions in the AF_VSOCK implementation are caused by wrong locking in net/vmw_vsock/af_vsock.c. The race conditions were implicitly introduced in the commits that added VSOCK multi-transport support.
- CVSS 3.1
- 7.0 HIGHCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.60% probability · 76th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-667
- Affected
- linux/linux kernel · netapp/aff baseboard management controller · netapp/cloud backup · netapp/fas baseboard management controller · netapp/solidfire \& hci management node · netapp/solidfire baseboard management controller · netapp/baseboard management controller 500f firmware · netapp/baseboard management controller a250 firmware · netapp/hci h410c firmware
- Source
- cve@mitre.org
EPSS 1.6% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.openwall.com/lists/oss-security/2021/02/05/6Mailing List, Patch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/04/09/2Mailing List
- http://www.openwall.com/lists/oss-security/2022/01/25/14Mailing List
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.13Release Notes, Vendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c518adafa39f37858697ac9309c6cf1805581446Patch, Vendor Advisory
- https://security.netapp.com/advisory/ntap-20210312-0008/Patch, Third Party Advisory
- https://www.openwall.com/lists/oss-security/2021/02/04/5Mailing List, Patch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/02/05/6Mailing List, Patch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/04/09/2Mailing List
- http://www.openwall.com/lists/oss-security/2022/01/25/14Mailing List
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.13Release Notes, Vendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c518adafa39f37858697ac9309c6cf1805581446Patch, Vendor Advisory
- https://security.netapp.com/advisory/ntap-20210312-0008/Patch, Third Party Advisory
- https://www.openwall.com/lists/oss-security/2021/02/04/5Mailing List, Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.