01 Record

CVE-2026-43197

netconsole: avoid OOB reads, msg is not nul-terminated

CriticalPUBLISHEDCNA: Linux

CNA base score9.1 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

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02 Description

netconsole: avoid OOB reads, msg is not nul-terminated

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 ImpactpartialSuccessful exploitation gives limited 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

0.58% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 47.5% of scored records. A rank, not a probability.

NVD base score

9.1 (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:N/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-10-21.

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

2026-05-06 11:28Z5 MO AGO

Last updated

2026-10-21 12:40Z8 DAYS AGO

Reserved

2026-05-01

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Critical (CVSS 9.1)

CNA CVSS vector

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

Weaknesses

CWE-125Out-of-bounds ReadBase

Data version

5.2

Document digest

e16bee53a0d204552e87443ed6e36190b12ee9ce15f06493df05e892e427c5e3

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxc62c0a17f9b7398022f9eebe547878033264f81f to < 68fe91df6ea822dae772fceaad0686e4f5839aec, c62c0a17f9b7398022f9eebe547878033264f81f to < 8fe132c4873f9eb1b86ddbf31216e9d961a0b8b9, c62c0a17f9b7398022f9eebe547878033264f81f to < 3126a2f98beaec5a554a1fb31c46db1e8542665e, c62c0a17f9b7398022f9eebe547878033264f81f to < 74ab1456eaa3b2eb986138f9e1f4cb37e73b6f58, c62c0a17f9b7398022f9eebe547878033264f81f to < 82aec772fca2223bc5774bd9af486fd95766e578, 6.6—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/68fe91df6ea822dae772fceaad0686e4f5839aec
git.kernel.orghttps://git.kernel.org/stable/c/8fe132c4873f9eb1b86ddbf31216e9d961a0b8b9
git.kernel.orghttps://git.kernel.org/stable/c/3126a2f98beaec5a554a1fb31c46db1e8542665e
git.kernel.orghttps://git.kernel.org/stable/c/74ab1456eaa3b2eb986138f9e1f4cb37e73b6f58
git.kernel.orghttps://git.kernel.org/stable/c/82aec772fca2223bc5774bd9af486fd95766e578

07 Fixed in

Debian 12

linux-6.12
Fixed in 6.12.107-1~deb12u1

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

Debian 13

linux
Fixed in 6.12.105-1

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

Debian 14

linux
Fixed in 6.19.6-1

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