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CVE-2022-49154

17
FAUCET Score

CVE-2022-49154 is a vulnerability in the Linux kernel's KVM (Kernel-based Virtual Machine) SVM (Secure Virtual Machine) module. It allows a local attacker to trigger a system panic (crash) due to an out-of-bounds write when processing guest IRQ (Interrupt Request) data via the KVM_IRQFD API call. This issue specifically affects the Linux kernel. The vulnerability has a CVSSv3.1 score of 5.5 (Medium), indicating a local attack vector with low attack complexity, requiring low privileges, and resulting in high availability impact (system crash) without affecting confidentiality or integrity. The EPSS score is very low, suggesting a low probability of exploitation. Currently, there is no evidence of active exploitation, nor are there publicly available exploit modules in Metasploit, Nuclei, or ExploitDB. Community discussion and media coverage for this CVE are minimal, which is typical for the vast majority of vulnerabilities.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.9, < 5.10.110CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.11, < 5.15.33CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.16, < 5.16.19CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.17, < 5.17.2CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.26%
Probability of exploitation in next 30 days
EPSS Percentile
18.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0026 is in the 73rd percentile among its peer group of 15,940 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (2)

redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2022-49154Moderate

kernel: KVM: SVM: fix panic on out-of-bounds guest IRQ

Feb 26, 2025

References

git.kernel.org / stable/c/0fb470eb48892e131d10aa3be6915239e65758f3
Patch
git.kernel.org / stable/c/3fa2d747960521a646fc1aad7aea82e95e139a68
Patch
git.kernel.org / stable/c/a6ffdebfb6a9c2ffeed902b544b96fe67498210e
Patch
git.kernel.org / stable/c/a80ced6ea514000d34bf1239d47553de0d1ee89e
Patch
git.kernel.org / stable/c/e4d153d53d9648513481eb4ef8c212e7f1f8173d
Patch