CVE-2025-27031
published 2025-06-03CVE-2025-27031: memory corruption while processing IOCTL commands, when the buffer in write loopback mode is accessed after being freed.
PriorityP344high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.08%
0.3th percentile
memory corruption while processing IOCTL commands, when the buffer in write loopback mode is accessed after being freed.
Affected
24 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| msrc | azl3_hyperv-daemons_6.6.22.1-2_on_azure_linux_3.0 | — | — |
| msrc | azl3_hyperv-daemons_6.6.35.1-1_on_azure_linux_3.0 | — | — |
| msrc | azure_linux_3.0_arm | — | — |
| msrc | azure_linux_3.0_x64 | — | — |
| qualcomm_inc | snapdragon | — | — |
| qualcomm_inc | snapdragon | — | — |
| qualcomm_inc | snapdragon | — | — |
| qualcomm_inc | snapdragon | — | — |
| qualcomm_inc | snapdragon | — | — |
| qualcomm_inc | snapdragon | — | — |
| qualcomm_inc | snapdragon | — | — |
| qualcomm_inc | snapdragon | — | — |
| qualcomm_inc | snapdragon | — | — |
| qualcomm_inc | snapdragon | — | — |
| qualcomm_inc | snapdragon | — | — |
| qualcomm_inc | snapdragon | — | — |
| qualcomm_inc | snapdragon | — | — |
| qualcomm_inc | snapdragon | — | — |
| qualcomm_inc | snapdragon | — | — |
| qualcomm_inc | snapdragon | — | — |
| qualcomm_inc | snapdragon | — | — |
| qualcomm_inc | snapdragon | — | — |
| qualcomm_inc | snapdragon | — | — |
| qualcomm_inc | snapdragon | — | — |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
vendor_msrc5.5MEDIUM
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
GHSA
GHSA-w7pg-pjp7-vmxw: memory corruption while processing IOCTL commands, when the buffer in write loopback mode is accessed after being freed
ghsa_unreviewed·2025-06-03
CVE-2025-27031 [HIGH] CWE-416 GHSA-w7pg-pjp7-vmxw: memory corruption while processing IOCTL commands, when the buffer in write loopback mode is accessed after being freed
memory corruption while processing IOCTL commands, when the buffer in write loopback mode is accessed after being freed.
Microsoft
NFS: Fix nfs_netfs_issue_read() xarray locking for writeback interrupt
vendor_msrc·2024-05-14·CVSS 5.5
CVE-2024-27031 [MEDIUM] CWE-667 NFS: Fix nfs_netfs_issue_read() xarray locking for writeback interrupt
NFS: Fix nfs_netfs_issue_read() xarray locking for writeback interrupt
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
Linux: Linux
Customer Action Required: Yes
Remediation: CBL-Mariner Releases
Reference
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2025-06-03
Published