01 Record

CVE-2023-53006

cifs: Fix oops due to uncleared server->smbd_conn in reconnect

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

View raw JSON

02 Description

cifs: Fix oops due to uncleared server->smbd_conn in reconnect

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

0.55% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 45.9% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-10-15.

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: 2025-03-27 16:43Z1 YR AGO
Last updated: 2026-10-15 21:41Z13 DAYS AGO
Reserved: 2025-03-27
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: No CWE assigned
Data version: 5.2
Document digest: c358d25716d878fad23ecc90db253cb949f57d18a44d6adc3a11dcbce248125c

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux8ef130f9ec27973f7b49e20c5a3b9134ca33026c to < a9640c0b268405f2540e8203a545e930ea88bb7d, 8ef130f9ec27973f7b49e20c5a3b9134ca33026c to < 91be54849d5392050f5b847b42bd5e6221551ac8, 8ef130f9ec27973f7b49e20c5a3b9134ca33026c to < e037baee16e0b9ace7e730888fcae9cec11daff2, 8ef130f9ec27973f7b49e20c5a3b9134ca33026c to < 4b83bc6f87eedab4599b0123e572a422689444be, 8ef130f9ec27973f7b49e20c5a3b9134ca33026c to < 5109607a4ece7cd8536172bf7549eb4dce1f3576, 8ef130f9ec27973f7b49e20c5a3b9134ca33026c to < b7ab9161cf5ddc42a288edf9d1a61f3bdffe17c7, 4.16—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/a9640c0b268405f2540e8203a545e930ea88bb7d
git.kernel.orghttps://git.kernel.org/stable/c/91be54849d5392050f5b847b42bd5e6221551ac8
git.kernel.orghttps://git.kernel.org/stable/c/e037baee16e0b9ace7e730888fcae9cec11daff2
git.kernel.orghttps://git.kernel.org/stable/c/4b83bc6f87eedab4599b0123e572a422689444be
git.kernel.orghttps://git.kernel.org/stable/c/5109607a4ece7cd8536172bf7549eb4dce1f3576
git.kernel.orghttps://git.kernel.org/stable/c/b7ab9161cf5ddc42a288edf9d1a61f3bdffe17c7

07 Fixed in

Debian 12

linux
Fixed in 6.1.11-1

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

Debian 13

linux
Fixed in 6.1.11-1

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

Debian 14

linux
Fixed in 6.1.11-1

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