CVE-2026-53151: rxrpc: Fix the ACK parser to extract the SACK table for parsing
Published Jun 25, 2026
·Updated
In the Linux kernel, the following vulnerability has been resolved:
Other sources
rxrpc: Fix the ACK parser to extract the SACK table for parsing
— Microsoft
Affected Software
14 affected componentsFixes available
Linux Linux kernel
Linux Linux kernel>=6.2<6.6.144
Linux Linux kernel>=6.7<6.12.95
Linux Linux kernel>=6.13<6.18.36
Linux Linux kernel>=6.19<7.0.13
Linux Linux kernel=7.1-rc1
Linux Linux kernel=7.1-rc2
Linux Linux kernel=7.1-rc3
Linux Linux kernel=7.1-rc4
Linux Linux kernel=7.1-rc5
Linux Linux kernel=7.1-rc6
Linux Linux kernel=7.1-rc7
Microsoft azl3 kernel 6.6.143.1-1<6.6.144.1-1
6.6.144.1-1
debian/linux<=6.12.94-1
5.10.223-15.10.262-16.1.176-16.1.180-16.12.105-17.1.8-27.1.10-1
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.6.144.1-1 - Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed in 5.10.223-1Fixed in 5.10.262-1Fixed in 6.1.176-1Fixed in 6.1.180-1Fixed in 6.12.105-1Fixed in 7.1.8-2Fixed in 7.1.10-1
Event History
Jun 25, 2026
CVE Published
via MITRE·08:38 AM
Data Sourced
via MITRE·08:38 AM
DescriptionSeverity
Data Sourced
via NVD·09:16 AM
RemedyDescriptionSeverityAffected Software
Jun 27, 2026
Data Sourced
via Microsoft·08:10 AM
DescriptionSeverityWeaknessAffected Software
Updated
via Microsoft·08:10 AM
DescriptionSeverity
Aug 13, 2026
Data Sourced
via Launchpad·08:41 PM
Description
Aug 26, 2026
Data Sourced
via Debian·10:12 PM
DescriptionAffected Software
Aug 27, 2026
Data Sourced
via Ubuntu·10:12 PM
RemedyDescriptionSeverityAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2026-53151?
CVE-2026-53151 has a risk level of 27.
2
How do I fix CVE-2026-53151?
To fix CVE-2026-53151, update to the latest patch of the Linux kernel that addresses this vulnerability.
3
What type of vulnerability is CVE-2026-53151?
CVE-2026-53151 pertains to a parsing error in the ACK parser within the Linux kernel's rxrpc implementation.
4
What is affected by CVE-2026-53151?
CVE-2026-53151 affects the Linux kernel, specifically its handling of fragmented UDP packets.
5
When was CVE-2026-53151 published?
CVE-2026-53151 was published on June 25, 2026.