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CVE-2026-73583— Sblim-sfcb: unsafe deserialization in sblim-sfcb provider-manager ipc allows out-of-bounds memory access via malformed operationhdr

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存在缓冲区错误漏洞，该漏洞源于provider-manager的进程间通信消息解析存在不安全反序列化问题，可能导致越界内存访问，从而使provider-manager进程终止，造成拒绝服务，并可能造成有限的信息泄露。

CVSS 6.6 · 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-2026-73583

Vulnerability Information
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Vulnerability Title
Sblim-sfcb: unsafe deserialization in sblim-sfcb provider-manager ipc allows out-of-bounds memory access via malformed operationhdr
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in sblim-sfcb. A local attacker with access to the system can exploit an unsafe deserialization vulnerability in the provider-manager's inter-process communication (IPC) message parsing. By sending a specially crafted message, the attacker can cause out-of-bounds memory access, leading to the termination of the provider-manager process and a denial of service. This could also potentially result in limited unintended information disclosure.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Vulnerability Title
Red Hat sblim-sfcb 缓冲区错误漏洞
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存在缓冲区错误漏洞，该漏洞源于provider-manager的进程间通信消息解析存在不安全反序列化问题，可能导致越界内存访问，从而使provider-manager进程终止，造成拒绝服务，并可能造成有限的信息泄露。
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-2026-73583

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III. Intelligence Information for CVE-2026-73583

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Vendor Advisories for CVE-2026-73583 (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-2026-18728 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-2026-73584 6.3 MEDIUM Sblim-sfcb: sblim-sfcb: privileged file corruption and denial of service via insecure temp
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-125

V. Comments for CVE-2026-73583

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