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NVD / CVE Program· CNA Linux

CVE-2026-68135: net: hip04: fix RX buffer leak on build_skb failure

Noroxi assessment

Priority: Monitor (action score 0/100)

  • 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: 0.18% (FIRST EPSS).
  • Fixed version: Linux Linux 14fa65d10f5696b063a7d8d26e8291ea84a2c6ed, 2b19fe277645fd1aeb18fd4ecdcf31966080dee7, 67a7614bde310da006ab259f4f163d3fb0f9e253; azl3 kernel 6.6.143.1-1 on Azure Linux 3.0 6.6.150.1-1.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 14fa65d10f5696b063a7d8d26e8291ea84a2c6ed, 2b19fe277645fd1aeb18fd4ecdcf31966080dee7, 67a7614bde310da006ab259f4f163d3fb0f9e253; azl3 kernel 6.6.143.1-1 on Azure Linux 3.0 6.6.150.1-1 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: hip04: fix RX buffer leak on build_skb failure When build_skb() fails in hip04_rx_poll(), the driver jumps to the refill path without releasing the current RX buffer and its DMA mapping. Installing a replacement buffer then overwrites the slot references and leaks both resources. Keep the current slot intact and return budget so NAPI retries the same buffer. Also free a newly allocated RX fragment when dma_map_single() fails. This issue was found by an in-house static analysis tool.

—No exploit Fix available
Published
Aug 10, 2026
Updated
Aug 19, 2026
EPSS
0.1% · 8th percentile
CWE
—

Report tools

JSON

Action score

0

Monitor

Low priority for now.

CVSS
0 / 40 · —
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

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.

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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

    • 4.5affected
    • 701a0fd5231866db08cebcd502894699f49cb960 and later · before 690ecc13a4032e5cae1dc6659512f32b033533b0affected · git
    • 701a0fd5231866db08cebcd502894699f49cb960 and later · before 2b19fe277645fd1aeb18fd4ecdcf31966080dee7affected · git
    • 701a0fd5231866db08cebcd502894699f49cb960 and later · before bcd43ee1f25b682151df213c06a99b2e1c1cf2e5affected · git
    • 701a0fd5231866db08cebcd502894699f49cb960 and later · before e054dcd990d8180cde529ea28ce0838e76a5ad5eaffected · git
    • 701a0fd5231866db08cebcd502894699f49cb960 and later · before 67a7614bde310da006ab259f4f163d3fb0f9e253affected · git
    • 701a0fd5231866db08cebcd502894699f49cb960 and later · before 80d977f280b4eccd4ac5369871d0ecb2b9c9a49daffected · git
    • 701a0fd5231866db08cebcd502894699f49cb960 and later · before a0f247d63489a107bbc3b712a77b302af2a2a173affected · git
    • 701a0fd5231866db08cebcd502894699f49cb960 and later · before 14fa65d10f5696b063a7d8d26e8291ea84a2c6edaffected · git
    • before 4.5not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.187-16.1.187-1
Debian:12linux-6.12before 6.12.101-1~deb12u16.12.101-1~deb12u1
Debian:13linuxbefore 6.12.101-16.12.101-1
Debian:14linuxbefore 7.1.6-17.1.6-1

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-2026-68130Aug 10, 2026 · ksmbd: defer destroy_previous_session() until after NTLM authentication
    0Monitor
  • ← EarlierCVE-2026-68134Aug 10, 2026 · ptp: ptp_s390: Add missing facility check
    29Monitor
  • Later →CVE-2026-68137Aug 10, 2026 · net/x25: fix use-after-free in x25_kill_by_neigh()
    39Monitor

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 Linux14fa65d10f5696b063a7d8d26e8291ea84a2c6edVendor (CNA)
Linux Linux2b19fe277645fd1aeb18fd4ecdcf31966080dee7Vendor (CNA)
Linux Linux67a7614bde310da006ab259f4f163d3fb0f9e253Vendor (CNA)
Linux Linux690ecc13a4032e5cae1dc6659512f32b033533b0Vendor (CNA)
Linux Linux80d977f280b4eccd4ac5369871d0ecb2b9c9a49dVendor (CNA)
Linux Linuxa0f247d63489a107bbc3b712a77b302af2a2a173Vendor (CNA)
Linux Linuxbcd43ee1f25b682151df213c06a99b2e1c1cf2e5Vendor (CNA)
Linux Linuxe054dcd990d8180cde529ea28ce0838e76a5ad5eVendor (CNA)
azl3 kernel 6.6.143.1-1 on Azure Linux 3.06.6.150.1-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
debian:linux6.1.187-1 · Debian:12Package registry (OSV)
debian:linux-6.126.12.101-1~deb12u1 · 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.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

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).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

No CVSS vector for this record, so attack conditions can't be derived.

Weakness class (CWE)

—

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 (7 more)

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

All records