Skip to content
Noroxi
NVD / CVE Program· CNA Linux

CVE-2025-71220: smb/server: call ksmbd_session_rpc_close() on error path in create_smb2_pipe()

Noroxi assessment

Priority: Monitor (action score 31/100)

  • 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: 0.15% (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 04dd114b682a4ccaeba2c2bad049c8b50ce740d8, 2b7b4df87fe6f2db6ee45f475de6b37b8b8e5d29, 5.15.200.

Low priority for now. Upgrade to Linux Linux 04dd114b682a4ccaeba2c2bad049c8b50ce740d8, 2b7b4df87fe6f2db6ee45f475de6b37b8b8e5d29, 5.15.200 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: smb/server: call ksmbd_session_rpc_close() on error path in create_smb2_pipe() When ksmbd_iov_pin_rsp() fails, we should call ksmbd_session_rpc_close().

HighCVSS 7.8 · v3.1—No exploit Fix available
Published
Feb 14, 2026
Updated
Nov 5, 2026
EPSS
0.1% · 4th percentile
CWE
—

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 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-2025-71220

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 instantly.

Your free account also gets you

Running WordPress? Scan your site free with WP Lens

  • Stack 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 (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

Running WordPress? Scan your site free with WP Lens

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

Affected versions

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

  • linux linux kernel5.15.145 and later · before 5.15.200
  • linux linux kernel6.1.71 and later · before 6.1.163
  • linux linux kernel6.6 and later · before 6.6.124
  • linux linux kernel6.7 and later · before 6.12.70
  • linux linux kernel6.13 and later · before 6.18.10
  • linux linux kernel6.19

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

    • 6.6affected
    • f2283680a80571ca82d710bc6ecd8f8beac67d63 and later · before a2c68e256fb7a4ac34154c6e865a1389acca839faffected · git
    • 9f297df20d93411c0b4ddad7f88ba04a7cd36e77 and later · before 2b7b4df87fe6f2db6ee45f475de6b37b8b8e5d29affected · git
    • e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d and later · before 04dd114b682a4ccaeba2c2bad049c8b50ce740d8affected · git
    • e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d and later · before ac18761b530b5dd40f59af8a25902282e5512854affected · git
    • e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d and later · before fdda836fcee6fdbcccc24e3679097efb583f581faffected · git
    • e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d and later · before 7c28f8eef5ac5312794d8a52918076dcd787e53baffected · git
    • 5.15.145 and later · before 5.15.200affected · semver
    • 6.1.71 and later · before 6.1.163affected · semver
    • before 6.6not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:11linux-6.1before 6.1.164-1~deb11u16.1.164-1~deb11u1
Debian:12linuxbefore 6.1.164-16.1.164-1
Debian:13linuxbefore 6.12.73-16.12.73-1
Debian:14linuxbefore 6.18.10-16.18.10-1

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-2026-23172Feb 14, 2026 · net: wwan: t7xx: fix potential skb->frags overflow in RX path
    22Monitor
  • ← EarlierCVE-2026-23173Feb 14, 2026 · net/mlx5e: TC, delete flows only for existing peers
    22Monitor
  • Later →CVE-2025-71221Feb 14, 2026 · dmaengine: mmp_pdma: Fix race condition in mmp_pdma_residue()
    28Monitor

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 Linux04dd114b682a4ccaeba2c2bad049c8b50ce740d8Vendor (CNA)
Linux Linux2b7b4df87fe6f2db6ee45f475de6b37b8b8e5d29Vendor (CNA)
Linux Linux5.15.200Vendor (CNA)
Linux Linux6.1.163Vendor (CNA)
Linux Linux7c28f8eef5ac5312794d8a52918076dcd787e53bVendor (CNA)
Linux Linuxa2c68e256fb7a4ac34154c6e865a1389acca839fVendor (CNA)
Linux Linuxac18761b530b5dd40f59af8a25902282e5512854Vendor (CNA)
Linux Linuxfdda836fcee6fdbcccc24e3679097efb583f581fVendor (CNA)
debian:linux6.1.164-1 · Debian:12Package registry (OSV)
debian:linux-6.16.1.164-1~deb11u1 · Debian:11Package 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

  • 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
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

—

CVSS vector

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

Change log

  1. SSVC exploitation— → none
  2. Fix✗ → ✓

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

References

Show all references (5 more)

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

All records