CVE-2026-43184
CVE-2026-43184 is a high-severity vulnerability in Linux Linux Kernel with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- EPSS exploit prediction: 0% (36th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-27744
- Affected product: Linux Linux Kernel
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2026-43184?
- 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.
- How severe is CVE-2026-43184?
- CVE-2026-43184 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
- Is CVE-2026-43184 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-43184?
- CVE-2026-43184 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-43184?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2026-43184 have an EU (EUVD) identifier?
- Yes. CVE-2026-43184 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-27744.
- When was CVE-2026-43184 published?
- CVE-2026-43184 was published on 2026-05-06 and last updated on 2026-06-17.
References
- https://git.kernel.org/stable/c/30868a6a5238849d554295aff3ce61d242d7fad8
- https://git.kernel.org/stable/c/69d26698e4fd44935510553809007151b2fe4db5
- https://git.kernel.org/stable/c/7aac0a30dcf41cdb510526740d9a2ab1520c5d98
- https://git.kernel.org/stable/c/852475278ca5e96e0c0275950e1a84203e602b33
- https://git.kernel.org/stable/c/b646e54d23b9b592d612a2036aab14e0f6c14206
- https://git.kernel.org/stable/c/c94ede3c436dfbd9cedd9cb69f604f6fc901b6a2
- https://git.kernel.org/stable/c/e2cacec7d4291300a282feb3af8eba57b93b15aa
- https://git.kernel.org/stable/c/e4272754063d52c9ad0169865add8816ba696471
Affected products (1)
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
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