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CVE-2026-73584— Sblim-sfcb: sblim-sfcb: privileged file corruption and denial of service via insecure temporary file handling

Quick assessment

Affected
Red Hat Red Hat Enterprise Linux 10
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Red Hat sblim-sfcb是美国Red Hat公司的一个符合 HTTP 协议 CIM 操作规范的通用信息模型 (CIM) 服务器。 Red Hat sblim-sfcb存在资源管理错误漏洞，该漏洞源于特权实例迁移期间处理/tmp目录中的临时文件时存在竞争条件，攻击者可通过反复创建符号链接将特权输出重定向至任意文件，导致特权文件损坏或拒绝服务。

CVSS 6.3 · Medium EPSS 0.13% · P2

Affected Version Matrix 5

VendorProduct Version RangeStatus
Red Hat Red Hat Enterprise Linux 10 any affected
Red Hat Red Hat Enterprise Linux 6 any unknown
Red Hat Red Hat Enterprise Linux 7 any affected
Red Hat Red Hat Enterprise Linux 8 any affected
Red Hat Red Hat Enterprise Linux 9 any affected
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I. Basic Information for CVE-2026-73584

Vulnerability Information
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Vulnerability Title
Sblim-sfcb: sblim-sfcb: privileged file corruption and denial of service via insecure temporary file handling
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in sblim-sfcb. A local, low-privileged attacker can exploit a race condition during privileged instance migration by manipulating a temporary file in the `/tmp` directory. By repeatedly recreating a symbolic link, the attacker can redirect privileged output to an arbitrary file. This can lead to privileged file corruption or a denial of service (DoS) on the system.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不安全的临时文件
Source: CVE Program / CVE List V5
Vulnerability Title
Red Hat sblim-sfcb 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Red Hat sblim-sfcb是美国Red Hat公司的一个符合 HTTP 协议 CIM 操作规范的通用信息模型 (CIM) 服务器。 Red Hat sblim-sfcb存在资源管理错误漏洞，该漏洞源于特权实例迁移期间处理/tmp目录中的临时文件时存在竞争条件，攻击者可通过反复创建符号链接将特权输出重定向至任意文件，导致特权文件损坏或拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Red Hat Red Hat Enterprise Linux 10 - cpe:/o:redhat:enterprise_linux:10
Red Hat Red Hat Enterprise Linux 6 - cpe:/o:redhat:enterprise_linux:6
Red Hat Red Hat Enterprise Linux 7 - cpe:/o:redhat:enterprise_linux:7
Red Hat Red Hat Enterprise Linux 8 - cpe:/o:redhat:enterprise_linux:8
Red Hat Red Hat Enterprise Linux 9 - cpe:/o:redhat:enterprise_linux:9

II. Public POCs for CVE-2026-73584

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III. Intelligence Information for CVE-2026-73584

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Vendor Advisories for CVE-2026-73584 (2)

Same Patch Batch · Red Hat · 2026-08-13 · 6 CVEs total

CVE-2026-73266 7.1 HIGH Clusterclaims-controller: confused deputy: tenant-controlled clusterclaim labels propagate
CVE-2026-73583 6.6 MEDIUM Sblim-sfcb: unsafe deserialization in sblim-sfcb provider-manager ipc allows out-of-bounds
CVE-2026-18728 6.5 MEDIUM Open-iscsi: open-iscsi: integer underflow in iscsiuio ipv4 dhcp parsing
CVE-2026-73585 6.3 MEDIUM Sblim-cmpi-base: insecure temporary file creation in sblim-cmpi-base provider registration
CVE-2026-19730 4.2 MEDIUM Podman: podman: quadlet install --replace non-truncating write retains removed host-access

IV. Related Vulnerabilities

Same product: Red Hat Enterprise Linux 10
Same vendor: Red Hat
Same weakness: CWE-377

V. Comments for CVE-2026-73584

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