01 Record

CVE-2026-53151

rxrpc: Fix the ACK parser to extract the SACK table for parsing

CriticalPUBLISHEDCNA: Linux

CNA base score9.8 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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02 Description

rxrpc: Fix the ACK parser to extract the SACK table for parsing

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.67% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 51.4% of scored records. A rank, not a probability.

NVD base score

9.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-10-19.

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

2026-06-25 08:38Z4 MO AGO

Last updated

2026-10-19 19:57Z9 DAYS AGO

Reserved

2026-06-09

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Critical (CVSS 9.8)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-125Out-of-bounds ReadBase

Data version

5.2

Document digest

2670c3f28e96d6a86cff5ac5a1af521b081a908dfc748a178c0cf08604f4d16d

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxd57a3a151660902091491ac2633134e1be92557f to < 5d1ae4e17a3ecd8561cdb4f4f70152f41039c4e1, d57a3a151660902091491ac2633134e1be92557f to < 775c5e89272a2615b72bb84f611ba66fa3b7493e, d57a3a151660902091491ac2633134e1be92557f to < 566c4c1244de50fbff1f89ff93c9d7b0fc256db4, d57a3a151660902091491ac2633134e1be92557f to < 224298450be5c04d2a6ea1c2a94669d7ebf65d00, d57a3a151660902091491ac2633134e1be92557f to < 333b6d5bb9f87827ac2639c737bf9613dbae7253, 6.2—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/5d1ae4e17a3ecd8561cdb4f4f70152f41039c4e1
git.kernel.orghttps://git.kernel.org/stable/c/775c5e89272a2615b72bb84f611ba66fa3b7493e
git.kernel.orghttps://git.kernel.org/stable/c/566c4c1244de50fbff1f89ff93c9d7b0fc256db4
git.kernel.orghttps://git.kernel.org/stable/c/224298450be5c04d2a6ea1c2a94669d7ebf65d00
git.kernel.orghttps://git.kernel.org/stable/c/333b6d5bb9f87827ac2639c737bf9613dbae7253

07 Fixed in

Debian 13

linux
Fixed in 6.12.95-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 7.0.13-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.