Is CVE-2026-23070 in the CISA KEV catalog?

No. CVE-2026-23070 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-23070?

CVE-2026-23070 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2026-23070?

CVE-2026-23070 has an EPSS score of 0.12% (2th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-23070?

Upgrade linux on debian 13 to 6.12.85-1 or later.

CVE & CISA-KEV Catalog

CVE-2026-23070

MEDIUM

5.5

CVSS v3

NVD

Description

In the Linux kernel, the following vulnerability has been resolved: Octeontx2-af: Add proper checks for fwdata firmware populates MAC address, link modes (supported, advertised) and EEPROM data in shared firmware structure which kernel access via MAC block(CGX/RPM). Accessing fwdata, on boards booted with out MAC block leading to kernel panics. Internal error: Oops: 0000000096000005 [#1] SMP [ 10.460721] Modules linked in: [ 10.463779] CPU: 0 UID: 0 PID: 174 Comm: kworker/0:3 Not tainted 6.19.0-rc5-00154-g76ec646abdf7-dirty #3 PREEMPT [ 10.474045] Hardware name: Marvell OcteonTX CN98XX board (DT) [ 10.479793] Workqueue: events work_for_cpu_fn [ 10.484159] pstate: 80400009 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 10.491124] pc : rvu_sdp_init+0x18/0x114 [ 10.495051] lr : rvu_probe+0xe58/0x1d18

How to fix

Remediation Available

linuxDebian

Fixed in:6.12.85-1CVE-2026-23070

Fixed in:6.18.8-1CVE-2026-23070

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.12%probability of exploitation in 30 days

2ndpercentile

Low risk: more likely to be exploited than 2% of all known CVEs.

References

Patch2

Other references1

git.kernel.org

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-03-25.