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NVD / CVE Program· CNA Linux

CVE-2025-68302: net: sxgbe: fix potential NULL dereference in sxgbe_rx()

Noroxi assessment

Priority: Monitor (action score 30/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.45% (FIRST EPSS).
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 18ef3ad1bb57dcf1a9ee61736039aedccf670b21, 45b5b4ddb8d6bea5fc1625ff6f163bbb125d49cc, 46e5332126596a2ca791140feab18ce1fc1a3c86.

Low priority for now. Upgrade to Linux Linux 18ef3ad1bb57dcf1a9ee61736039aedccf670b21, 45b5b4ddb8d6bea5fc1625ff6f163bbb125d49cc, 46e5332126596a2ca791140feab18ce1fc1a3c86 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

In the Linux kernel, the following vulnerability has been resolved: net: sxgbe: fix potential NULL dereference in sxgbe_rx() Currently, when skb is null, the driver prints an error and then dereferences skb on the next line. To fix this, let's add a 'break' after the error message to switch to sxgbe_rx_refill(), which is similar to the approach taken by the other drivers in this particular case, e.g. calxeda with xgmac_rx(). Found during a code review.

HighCVSS 7.5 · v3.1—No exploit Fix available
Published
Dec 16, 2025
Updated
Oct 13, 2026
EPSS
0.4% · 39th percentile
CWE
—

Report tools

JSON

Action score

30

Monitor

Low priority for now.

CVSS
30 / 40 · 7.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.4%

CNA vs NVD score

NVD
—
CNA · Linux
7.5
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2025-68302

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

—

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 3.15affected
    • 1edb9ca69e8a7988900fc0283e10550b5592164d and later · before ac171c3c755499c9f87fe30b920602255f8b5648affected · git
    • 1edb9ca69e8a7988900fc0283e10550b5592164d and later · before 18ef3ad1bb57dcf1a9ee61736039aedccf670b21affected · git
    • 1edb9ca69e8a7988900fc0283e10550b5592164d and later · before 46e5332126596a2ca791140feab18ce1fc1a3c86affected · git
    • 1edb9ca69e8a7988900fc0283e10550b5592164d and later · before 7fd789d6ea4915034eb6bcb72f6883c8151083e5affected · git
    • 1edb9ca69e8a7988900fc0283e10550b5592164d and later · before 45b5b4ddb8d6bea5fc1625ff6f163bbb125d49ccaffected · git
    • 1edb9ca69e8a7988900fc0283e10550b5592164d and later · before 88f46c0be77bfe45830ac33102c75be7c34ac3f3affected · git
    • 1edb9ca69e8a7988900fc0283e10550b5592164d and later · before f5bce28f6b9125502abec4a67d68eabcd24b3b17affected · git
    • before 3.15not affected · semver
    • 5.10.247 and later · up to and including 5.10.*not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.159-16.1.159-1
Debian:13linuxbefore 6.12.63-16.12.63-1
Debian:14linuxbefore 6.17.11-16.17.11-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-74705udp: fix potential use-after-free in tunnel segmentation
    40Plan
  • CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment
    40Plan
  • CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2025-68300Dec 16, 2025 · fs/namespace: fix reference leak in grab_requested_mnt_ns
    0Monitor
  • ← EarlierCVE-2025-68301Dec 16, 2025 · net: atlantic: fix fragment overflow handling in RX path
    39Monitor
  • Later →CVE-2025-68303Dec 16, 2025 · platform/x86: intel: punit_ipc: fix memory corruption
    31Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux18ef3ad1bb57dcf1a9ee61736039aedccf670b21Vendor (CNA)
Linux Linux45b5b4ddb8d6bea5fc1625ff6f163bbb125d49ccVendor (CNA)
Linux Linux46e5332126596a2ca791140feab18ce1fc1a3c86Vendor (CNA)
Linux Linux7fd789d6ea4915034eb6bcb72f6883c8151083e5Vendor (CNA)
Linux Linux88f46c0be77bfe45830ac33102c75be7c34ac3f3Vendor (CNA)
Linux Linuxac171c3c755499c9f87fe30b920602255f8b5648Vendor (CNA)
Linux Linuxf5bce28f6b9125502abec4a67d68eabcd24b3b17Vendor (CNA)
debian:linux6.1.159-1 · Debian:12Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

—

CVSS vector

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

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (6 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records