5.5

CVE-2026-23070: Octeontx2-af: Add proper checks for fwdata

Modified
AliasesUBUNTU-CVE-2026-23070DEBIAN-CVE-2026-23070CGA-2vwr-25fx-7vgr
Published 04-02-2026Last modified 11-05-2026

Vulnerability summary

CVE-2026-23070 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.14% chance of exploitation in the next 30 days, higher than 3.7% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.14%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 12 · Related 13
OPENSUSE-SU-2026:20416-1SUSE-SU-2026:0962-1SUSE-SU-2026:1081-1SUSE-SU-2026:20838-1SUSE-SU-2026:20873-1SUSE-SU-2026:20931-1

Timeline

  1. 04-02-2026
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

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

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.14%

Chance of exploitation in the next 30 days

Percentile

4%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.14% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu107 products
  • linuxAll versions (No fix recorded)
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Chainguard5 products
  • linux-aws-6.12< 6.12.78-r0 | < 6.12.77-r2 | < 6.12.77-r1 | < 6.12.80-r0
  • linux-azure-6.12< 6.12.77-r2 | < 6.12.80-r0 | < 6.12.77-r1 | < 6.12.78-r0
  • linux-gcp-6.12< 6.12.80-r0 | < 6.12.77-r1 | < 6.12.78-r0 | < 6.12.77-r2
  • linux-qemu-6.12< 6.12.78-r0 | < 6.12.77-r2 | < 6.12.77-r1 | < 6.12.80-r0
  • linux-vmware-6.12< 6.12.77-r1 | < 6.12.77-r2 | < 6.12.78-r0 | < 6.12.80-r0
Linux2 products
  • linux≥ 997814491cee7b19c162ad82439818e555f99ad9, < 079050a23de6b7505595e4af75b36c34f0e9627e | ≥ 997814491cee7b19c162ad82439818e555f99ad9, < e343973fab43c266a40e4e0dabdc4216db6d5eff | ≥ 997814491cee7b19c162ad82439818e555f99ad9, < 4a3dba48188208e4f66822800e042686784d29d1 | 6.9
  • linux_kernel≥ 6.9, < 6.18.8 | 6.19:rc1 | 6.19:rc2 | 6.19:rc3 | 6.19:rc4 | 6.19:rc5 | 6.19:rc6
Debian1 product
  • linux< 6.12.85-1 | < 6.18.8-1

4 vendors · 115 products

References

13 links
Show all 13 references