HOMEVULNERABILITIESCVE-2025-71271
MEDIUM

CVE-2025-71271

Published: May 6, 2026· Updated: May 12, 2026

5.5
CVSS v3.1

Official Description

In the Linux kernel, the following vulnerability has been resolved:

hfsplus: ensure sb->s_fs_info is always cleaned up

When hfsplus was converted to the new mount api a bug was introduced by

changing the allocation pattern of sb->s_fs_info. If setup_bdev_super()

fails after a new superblock has been allocated by sget_fc(), but before

hfsplus_fill_super() takes ownership of the filesystem-specific s_fs_info

data it was leaked.

Fix this by freeing sb->s_fs_info in hfsplus_kill_super().

NVD Source

Technical Analysis

CVE-2025-71271 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 5.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Vendors & Products

Linux1 product
linux kernel
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
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Official Patches & Advisories

PATCHhttps://git.kernel.org/stable/c/0bcfebb83b5460d5be4e5c9dfb19cdaf3d4cb1db
PATCHhttps://git.kernel.org/stable/c/126fb0ce99431126b44a6c360192668c818f641f
PATCHhttps://git.kernel.org/stable/c/1e38d32bb04d85a2c81204a85a34878a497128c8

All References (3)

→
https://git.kernel.org/stable/c/0bcfebb83b5460d5be4e5c9dfb19cdaf3d4cb1dbPatch
→
https://git.kernel.org/stable/c/126fb0ce99431126b44a6c360192668c818f641fPatch
→
https://git.kernel.org/stable/c/1e38d32bb04d85a2c81204a85a34878a497128c8Patch

Quick Facts

CVE IDCVE-2025-71271
CVSS Score5.5 / 10
SeverityMEDIUM
CISA KEVNo
Affected1 vendor
PublishedMay 6, 2026

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2025-71271 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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