01 Record

CVE-2026-43028

netfilter: x_tables: ensure names are nul-terminated

HighPUBLISHEDCNA: Linux

CNA base score7.1 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

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02 Description

netfilter: x_tables: ensure names are 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.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
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

0.13% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 2.7% of scored records. A rank, not a probability.

NVD base score

7.1 (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:H/I:N/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

2026-05-01 14:15Z6 MO AGO

Last updated

2026-10-19 19:06Z9 DAYS AGO

Reserved

2026-05-01

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.1)

CNA CVSS vector

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

Weaknesses

CWE-170Improper Null TerminationBase

Data version

5.2

Document digest

3fa54a836206c972a1b35aee8945fa04199a8854b73692fe3d4e1c16a0cb0799

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxc38c4597e4bf3e99860eac98211748e1ecb0e139 to < bcac50ea0a29d430eedc5ac87b215393b567baa9, c38c4597e4bf3e99860eac98211748e1ecb0e139 to < ea01c1b219f5a11c66918abaa6f052e5a74041d6, c38c4597e4bf3e99860eac98211748e1ecb0e139 to < aa6cd4a8863391e0a64f62d8922cb0af732a2cf2, c38c4597e4bf3e99860eac98211748e1ecb0e139 to < c2d4a3abb15ca14716c6d8b9ffcbcd7c63626af4, c38c4597e4bf3e99860eac98211748e1ecb0e139 to < 673bbd36cba21d10a10f0932f479df7468e26fbb, c38c4597e4bf3e99860eac98211748e1ecb0e139 to < f419bdc205894750f4d3ec042bc87a1b9cde1351, c38c4597e4bf3e99860eac98211748e1ecb0e139 to < 73124608172890306b85f2206d8b3cac20e324f1, c38c4597e4bf3e99860eac98211748e1ecb0e139 to < a958a4f90ddd7de0800b33ca9d7b886b7d40f74e, 4.5—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/bcac50ea0a29d430eedc5ac87b215393b567baa9
git.kernel.orghttps://git.kernel.org/stable/c/ea01c1b219f5a11c66918abaa6f052e5a74041d6
git.kernel.orghttps://git.kernel.org/stable/c/aa6cd4a8863391e0a64f62d8922cb0af732a2cf2
git.kernel.orghttps://git.kernel.org/stable/c/c2d4a3abb15ca14716c6d8b9ffcbcd7c63626af4
git.kernel.orghttps://git.kernel.org/stable/c/673bbd36cba21d10a10f0932f479df7468e26fbb
git.kernel.orghttps://git.kernel.org/stable/c/f419bdc205894750f4d3ec042bc87a1b9cde1351
git.kernel.orghttps://git.kernel.org/stable/c/73124608172890306b85f2206d8b3cac20e324f1
git.kernel.orghttps://git.kernel.org/stable/c/a958a4f90ddd7de0800b33ca9d7b886b7d40f74e
cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-082556.html
cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-019113.html
cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-457936.html

07 Fixed in

Debian 12

linux
Fixed in 6.1.170-1

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

Debian 13

linux
Fixed in 6.12.85-1

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

Debian 14

linux
Fixed in 6.19.12-1

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