CVE-2018-19364

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

0.53% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 44.5% of scored records. A rank, not a probability.

NVD base score

5.5 (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:N/I:N/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Low. 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.

Published

2018-12-13 19:00Z7 YR AGO

Last updated

2024-08-05 11:37Z2 YR AGO

Reserved

2018-11-19

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-416Use After FreeVariant
• CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')Class

Data version

5.1

Document digest

3cf388166f065f5b42bab3d8f686af8ff5f68c5a5c2a368e699a17b446042a07

• lists.debian.org[debian-lts-announce] 20190129 [SECURITY] [DLA 1646-1] qemu security updatehttps://lists.debian.org/debian-lts-announce/2019/01/msg00023.htmlmailing-listx_refsource_MLIST
• lists.gnu.org[qemu-devel] 20181107 [PATCH] 9p: write lock path in v9fs_co_open2()https://lists.gnu.org/archive/html/qemu-devel/2018-11/msg01139.htmlmailing-listx_refsource_MLIST
• usn.ubuntu.comUSN-3826-1https://usn.ubuntu.com/3826-1/vendor-advisoryx_refsource_UBUNTU
• www.openwall.com[oss-security] 20181120 CVE-2018-19364 Qemu: 9pfs: Use-after-free due to race condition while updating fid pathhttp://www.openwall.com/lists/oss-security/2018/11/20/1mailing-listx_refsource_MLIST
• lists.gnu.org[qemu-devel] 20181115 [PATCH] 9p: take write lock on fid path updateshttps://lists.gnu.org/archive/html/qemu-devel/2018-11/msg02795.htmlmailing-listx_refsource_MLIST
• lists.fedoraproject.orgFEDORA-2019-88a98ce795https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CGCFIFSIWUREEQQOZDZFBYKWZHXCWBZN/vendor-advisoryx_refsource_FEDORA
• lists.opensuse.orgopenSUSE-SU-2019:1074http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00042.htmlvendor-advisoryx_refsource_SUSE
• www.debian.orgDSA-4454https://www.debian.org/security/2019/dsa-4454vendor-advisoryx_refsource_DEBIAN
• seclists.org20190531 [SECURITY] [DSA 4454-1] qemu security updatehttps://seclists.org/bugtraq/2019/May/76mailing-listx_refsource_BUGTRAQ