HOMEVULNERABILITIESCVE-2026-43184
HIGH

CVE-2026-43184

Published: May 6, 2026· Updated: May 11, 2026

7.5
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:

rnbd-srv: Zero the rsp buffer before using it

Before using the data buffer to send back the response message, zero it

completely. This prevents any stray bytes to be picked up by the client

side when there the message is exchanged between different protocol

versions.

NVD Source

Technical Analysis

CVE-2026-43184 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 7.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

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/30868a6a5238849d554295aff3ce61d242d7fad8
PATCHhttps://git.kernel.org/stable/c/69d26698e4fd44935510553809007151b2fe4db5
PATCHhttps://git.kernel.org/stable/c/7aac0a30dcf41cdb510526740d9a2ab1520c5d98
PATCHhttps://git.kernel.org/stable/c/852475278ca5e96e0c0275950e1a84203e602b33
PATCHhttps://git.kernel.org/stable/c/b646e54d23b9b592d612a2036aab14e0f6c14206
PATCHhttps://git.kernel.org/stable/c/c94ede3c436dfbd9cedd9cb69f604f6fc901b6a2
PATCHhttps://git.kernel.org/stable/c/e2cacec7d4291300a282feb3af8eba57b93b15aa
PATCHhttps://git.kernel.org/stable/c/e4272754063d52c9ad0169865add8816ba696471

All References (8)

→
https://git.kernel.org/stable/c/30868a6a5238849d554295aff3ce61d242d7fad8Patch
→
https://git.kernel.org/stable/c/69d26698e4fd44935510553809007151b2fe4db5Patch
→
https://git.kernel.org/stable/c/7aac0a30dcf41cdb510526740d9a2ab1520c5d98Patch
→
https://git.kernel.org/stable/c/852475278ca5e96e0c0275950e1a84203e602b33Patch
→
https://git.kernel.org/stable/c/b646e54d23b9b592d612a2036aab14e0f6c14206Patch
→
https://git.kernel.org/stable/c/c94ede3c436dfbd9cedd9cb69f604f6fc901b6a2Patch
→
https://git.kernel.org/stable/c/e2cacec7d4291300a282feb3af8eba57b93b15aaPatch
→
https://git.kernel.org/stable/c/e4272754063d52c9ad0169865add8816ba696471Patch

Quick Facts

CVE IDCVE-2026-43184
CVSS Score7.5 / 10
SeverityHIGH
CISA KEVNo
EPSS (30d)0.02%
Affected1 vendor
PublishedMay 6, 2026

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-43184 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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