Skip to content
Noroxi
NVD / CVE Program· CNA Linux

CVE-2025-38251: atm: clip: prevent NULL deref in clip_push()

MediumCVSS 5.5 · v3.1—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 22/100)

  • 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: 0.17% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 3c709dce16999bf6a1d2ce377deb5dd6fdd8cb08, 41f6420ee845006354c004839fed07da71e34aee, 88c88f91f4b3563956bb52e7a71a3640f7ece157; azl3 kernel 6.6.92.2-2 on Azure Linux 3.0 6.6.96.1-1; cbl2 kernel 5.15.186.1-1 on CBL Mariner 2.0 5.15.200.1-1.

Low priority for now. Upgrade to Linux Linux 3c709dce16999bf6a1d2ce377deb5dd6fdd8cb08, 41f6420ee845006354c004839fed07da71e34aee, 88c88f91f4b3563956bb52e7a71a3640f7ece157; azl3 kernel 6.6.92.2-2 on Azure Linux 3.0 6.6.96.1-1; cbl2 kernel 5.15.186.1-1 on CBL Mariner 2.0 5.15.200.1-1 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: atm: clip: prevent NULL deref in clip_push() Blamed commit missed that vcc_destroy_socket() calls clip_push() with a NULL skb. If clip_devs is NULL, clip_push() then crashes when reading skb->truesize.

Published
Jul 9, 2025
Updated
Nov 5, 2026
EPSS
0.1% · 7th percentile

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

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-2025-38251

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

One daily email digest (06:00 UTC); connect a webhook for KEV listings and weaponized exploits every 10 minutes on paid plans, on the hour on the free plan.

Your free account also gets you

  • CVE alerts: add the products and versions you run, get the new CVEs that affect them
  • Uptime monitoring: 1 site, instant email when it goes down
  • Add your domain: subdomains and takeover risk scanned every week (1 domain)
  • 10 scans an hour on the security tools, at most 30 a day (3 a day without an account), an API key and MCP
  • All your scans in one panel: findings, what changed in the last scan, a report per domain or per client (PDF, share link)
All free tools

Sign up with email · Have an account? Sign in

Free account, no card. Unfollow any time.

Don't want an account? Get "Exploited this week" by email every MondayDon't want an account? RSS feed for linux records
Is your version affected? Check it

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.

We use this product, ask for help

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.

VendorProduct
linuxlinux kernel
debiandebian linux

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

    • 5.7affected
    • 93a2014afbace907178afc3c9c1e62c9a338595a and later · before 41f6420ee845006354c004839fed07da71e34aeeaffected · git
    • 93a2014afbace907178afc3c9c1e62c9a338595a and later · before 9199e8cb75f13a1650adcb3c6cad42789c43884eaffected · git
    • 93a2014afbace907178afc3c9c1e62c9a338595a and later · before 88c88f91f4b3563956bb52e7a71a3640f7ece157affected · git
    • 93a2014afbace907178afc3c9c1e62c9a338595a and later · before 3c709dce16999bf6a1d2ce377deb5dd6fdd8cb08affected · git
    • 93a2014afbace907178afc3c9c1e62c9a338595a and later · before a07005a77b18ae59b8471e7e4d991fa9f642b3c2affected · git
    • 93a2014afbace907178afc3c9c1e62c9a338595a and later · before ede31ad949ae0d03cb4c5edd79991586ad7c8bb8affected · git
    • 93a2014afbace907178afc3c9c1e62c9a338595a and later · before b993ea46b3b601915ceaaf3c802adf11e7d6bac6affected · git
    • before 5.7not affected · semver
    • 5.10.240 and later · up to and including 5.10.*not affected · semver
Affected versions · NVD (9)

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • debian debian linux11.0
  • linux linux kernel5.11 and later · before 5.15.187
  • linux linux kernel5.16 and later · before 6.1.143
  • linux linux kernel6.2 and later · before 6.6.96
  • linux linux kernel5.7.1 and later · before 5.10.240
  • linux linux kernel6.13 and later · before 6.15.5
  • linux linux kernel6.7 and later · before 6.12.36
  • linux linux kernel5.7
  • linux linux kernel6.16

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.147-16.1.147-1
Debian:13linuxbefore 6.12.37-16.12.37-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe…KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now

Published before and after this one in the same product

  • ← EarlierCVE-2025-38249Jul 9, 2025 · ALSA: usb-audio: Fix out-of-bounds read in snd_usb_get_audioformat_uac3()
    28Monitor
  • ← EarlierCVE-2025-38250Jul 9, 2025 · Bluetooth: hci_core: Fix use-after-free in vhci_flush()
    31Monitor
  • Later →CVE-2025-38253Jul 9, 2025 · HID: wacom: fix crash in wacom_aes_battery_handler()
    22Monitor

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 Linux3c709dce16999bf6a1d2ce377deb5dd6fdd8cb08Vendor (CNA)
Linux Linux41f6420ee845006354c004839fed07da71e34aeeVendor (CNA)
Linux Linux88c88f91f4b3563956bb52e7a71a3640f7ece157Vendor (CNA)
Linux Linux9199e8cb75f13a1650adcb3c6cad42789c43884eVendor (CNA)
Linux Linuxa07005a77b18ae59b8471e7e4d991fa9f642b3c2Vendor (CNA)
Linux Linuxb993ea46b3b601915ceaaf3c802adf11e7d6bac6Vendor (CNA)
Linux Linuxede31ad949ae0d03cb4c5edd79991586ad7c8bb8Vendor (CNA)
azl3 kernel 6.6.92.2-2 on Azure Linux 3.06.6.96.1-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
cbl2 kernel 5.15.186.1-1 on CBL Mariner 2.05.15.200.1-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
debian:linux6.1.147-1 · 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.

Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • 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
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-476 · NULL Pointer Dereference

CVSS vector

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

nvd-primary

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.

References

Show all references (8 more)

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

All records