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CVE-2022-49535

21
FAUCET Score

CVE-2022-49535 is a use-after-free vulnerability in the Linux kernel's lpfc SCSI driver, affecting the linux_kernel product. It occurs when the driver prematurely releases a node structure during FLOGI or PLOGI operations, leading to a null pointer dereference if a pending dev-loss-evt attempts to access the freed memory. Rated 7.8 HIGH on CVSS, this vulnerability could allow a local attacker with low privileges to achieve high impact on confidentiality, integrity, and availability. There is currently no public exploit code available, and it has not been observed in active exploitation, nor has it garnered significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 5.15.181CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.16, < 5.18.3CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.27%
Probability of exploitation in next 30 days
EPSS Percentile
18.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0027 is in the 54th percentile among its peer group of 17,070 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (7)

autodeskpatch availablevia llm_extracted
View patch
freepbxpatch availablevia llm_extracted
View patch
honeywellpatch availablevia llm_extracted
View patch
microsoftpatch availablevia msrc
Product: 19682-17086
microsoftpatch availablevia msrc
Product: cbl2 kernel 5.15.182.1-1 on CBL Mariner 2.0
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 (5)

honeywellllm-honeywell-c82b5cfda9df97a3CRITICAL

HP ThinPro 8.1 SP8 Security Updates

Oct 27, 2025
autodeskllm-autodesk-c365b674a2ff5a3aCRITICAL

HP ThinPro 8.1 SP8 Security Updates

Oct 27, 2025
freepbxllm-freepbx-e54908c7967265f6CRITICAL

HP ThinPro 8.1 SP8 Security Updates

Oct 27, 2025
redhatCVE-2022-49535Moderate

kernel: scsi: lpfc: Fix null pointer dereference after failing to issue FLOGI and PLOGI

Feb 26, 2025
microsoft2025-Feb/CVE-2022-49535Important

scsi: lpfc: Fix null pointer dereference after failing to issue FLOGI and PLOGI

Feb 11, 2025

References

git.kernel.org / stable/c/10663ebec0ad5c78493a0dd34c9ee4d73d7ca0df
Patch
git.kernel.org / stable/c/577a942df3de2666f6947bdd3a5c9e8d30073424
Patch
git.kernel.org / stable/c/c7dc74ab7975c9b96284abfe4cca756d75fa4604
Patch