HOMEVULNERABILITIESCVE-2026-43262
MEDIUM

CVE-2026-43262

Published: May 6, 2026· Updated: May 8, 2026

5.5
CVSS v3.1
EPSS:0.02%probability of exploitation in 30 daysPercentile:7.0th

Official Description

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

gfs2: fiemap page fault fix

In gfs2_fiemap(), we are calling iomap_fiemap() while holding the inode

glock. This can lead to recursive glock taking if the fiemap buffer is

memory mapped to the same inode and accessing it triggers a page fault.

Fix by disabling page faults for iomap_fiemap() and faulting in the

buffer by hand if necessary.

Fixes xfstest generic/742.

NVD Source

Technical Analysis

CVE-2026-43262 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
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://git.kernel.org/stable/c/2e121c53b581e40397ae08090a7af4ed10781fbc
PATCHhttps://git.kernel.org/stable/c/5d2c4f182ea8516de8682e2b60411c03df00e3ea
PATCHhttps://git.kernel.org/stable/c/5d5d9ec957bfa1eb2b05861c19f5d701dd006db7
PATCHhttps://git.kernel.org/stable/c/9d15fee888f0e8938c9aeed71ec9c2cbba0c88ab
PATCHhttps://git.kernel.org/stable/c/cead3bebf3e318578b8a86a5472015d713d2a8a8
PATCHhttps://git.kernel.org/stable/c/e411d74cc5ba290f85d0dd5e4d1df8f1d6d975d2
PATCHhttps://git.kernel.org/stable/c/e428670cfb2993d8c224effd076242ca6b0950de

All References (7)

→
https://git.kernel.org/stable/c/2e121c53b581e40397ae08090a7af4ed10781fbcPatch
→
https://git.kernel.org/stable/c/5d2c4f182ea8516de8682e2b60411c03df00e3eaPatch
→
https://git.kernel.org/stable/c/5d5d9ec957bfa1eb2b05861c19f5d701dd006db7Patch
→
https://git.kernel.org/stable/c/9d15fee888f0e8938c9aeed71ec9c2cbba0c88abPatch
→
https://git.kernel.org/stable/c/cead3bebf3e318578b8a86a5472015d713d2a8a8Patch
→
https://git.kernel.org/stable/c/e411d74cc5ba290f85d0dd5e4d1df8f1d6d975d2Patch
→
https://git.kernel.org/stable/c/e428670cfb2993d8c224effd076242ca6b0950dePatch

Quick Facts

CVE IDCVE-2026-43262
CVSS Score5.5 / 10
SeverityMEDIUM
CISA KEVNo
EPSS (30d)0.02%
Affected1 vendor
PublishedMay 6, 2026

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-43262 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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