01 Record

CVE-2024-49936

net/xen-netback: prevent UAF in xenvif_flush_hash()

HighPUBLISHEDCNA: Linux

CNA base score8.8 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

View raw JSON

02 Description

net/xen-netback: prevent UAF in xenvif_flush_hash()

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.27% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 19.6% of scored records. A rank, not a probability.

NVD base score

7.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-08-04.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2024-10-21 18:01Z1 YR AGO

Last updated

2026-08-05 11:40Z1 MO AGO

Reserved

2024-10-21

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 8.8)

CNA CVSS vector

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

Weaknesses

CWE-416Use After FreeVariant

Data version

5.2

Document digest

1a51cc6800b0a1f09a4cb454a21846e5ec4ccd4de7c3bc4b3bf9576796dab871

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux40d8abdee806d496a60ee607a6d01b1cd7fabaf0 to < 3c4423b0c4b98213b3438e15061e1d08220e6982, 40d8abdee806d496a60ee607a6d01b1cd7fabaf0 to < a7f0073fcd12ed7de185ef2c0af9d0fa1ddef22c, 40d8abdee806d496a60ee607a6d01b1cd7fabaf0 to < a0465723b8581cad27164c9073fd780904cd22d4, 40d8abdee806d496a60ee607a6d01b1cd7fabaf0 to < efcff6ce7467f01f0753609f420333f3f2ceceda, 40d8abdee806d496a60ee607a6d01b1cd7fabaf0 to < 143edf098b80669d05245b2f2367dd156a83a2c5, 40d8abdee806d496a60ee607a6d01b1cd7fabaf0 to < d408889d4b54f5501e4becc4dbbb9065143fbf4e, 40d8abdee806d496a60ee607a6d01b1cd7fabaf0 to < 54d8639af5568fc41c0e274fc3ec9cf86c59fcbb, 40d8abdee806d496a60ee607a6d01b1cd7fabaf0 to < 0fa5e94a1811d68fbffa0725efe6d4ca62c03d12, 4.7—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/3c4423b0c4b98213b3438e15061e1d08220e6982
git.kernel.orghttps://git.kernel.org/stable/c/a7f0073fcd12ed7de185ef2c0af9d0fa1ddef22c
git.kernel.orghttps://git.kernel.org/stable/c/a0465723b8581cad27164c9073fd780904cd22d4
git.kernel.orghttps://git.kernel.org/stable/c/efcff6ce7467f01f0753609f420333f3f2ceceda
git.kernel.orghttps://git.kernel.org/stable/c/143edf098b80669d05245b2f2367dd156a83a2c5
git.kernel.orghttps://git.kernel.org/stable/c/d408889d4b54f5501e4becc4dbbb9065143fbf4e
git.kernel.orghttps://git.kernel.org/stable/c/54d8639af5568fc41c0e274fc3ec9cf86c59fcbb
git.kernel.orghttps://git.kernel.org/stable/c/0fa5e94a1811d68fbffa0725efe6d4ca62c03d12
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/03/msg00002.html
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/01/msg00001.html

01 Record index

CVE-2024-49936

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2024-49936

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References