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CVE-2026-93433— Libstoragemgmt: libstoragemgmt: denial of service via stack buffer overflow in scsi vpd page parsing

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.

在 libstoragemgmt 中发现一个漏洞。能够控制本地或虚拟存储设备的攻击者可以提供特别构造的 SCSI（小型计算机系统接口）重要产品数据（VPD）0x80 页数据。该格式错误的数据，特别是不可信的页面长度字段，可能导致在解析序列号时，函数中发生栈缓冲区溢出。成功利用此漏洞可能导致查询序列号的过程崩溃或不稳定，从而造成拒绝服务。

CVSS 5.5 · Medium EPSS 0.15% · P5 Updated Nov 06, 2026

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 4

Vendor	Product	Version Range	Status
Red Hat	Red Hat Enterprise Linux 10	`any`	affected
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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Vulnerability Information

Have questions about the vulnerability? See if Shenlong's analysis helps!

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title

Libstoragemgmt: libstoragemgmt: denial of service via stack buffer overflow in scsi vpd page parsing

Source: CVE Program / CVE List V5

Vulnerability Description

A flaw was found in libstoragemgmt. An attacker with control over a local or virtual storage device could provide specially crafted SCSI (Small Computer System Interface) Vital Product Data (VPD) page 0x80 data. This malformed data, specifically an untrusted page length field, can lead to a stack buffer overflow in the `_sg_parse_vpd_80()` function during serial number parsing. Successful exploitation could result in a denial of service by crashing or destabilizing the process querying the serial number.

Source: CVE Program / CVE List V5

CVSS Information

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

Source: CVE Program / CVE List V5

Vulnerability Type

栈缓冲区溢出

Source: CVE Program / CVE List V5

Affected Products

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

II. Public POCs for CVE-2026-93433

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2026-93433

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Vendor Advisories for CVE-2026-93433 (2)

🔗 CVE-2026-93433 - Red Hat Customer Portal vdb-entry x_refsource_REDHAT
🔗 2465818 – (CVE-2026-93433) CVE-2026-93433 libstoragemgmt: libstoragemgmt: Denial of Service via stack buffer overflow in SCSI VPD page parsing Read full article issue-tracking x_refsource_REDHAT

https://www.cve.org/CVERecord?id=CVE-2026-93433

Same Patch Batch · Red Hat · 2026-09-21 · 12 CVEs total

CVE-2026-80110	8.1 HIGH	Pki-core: dogtag pki v2 rest acl filter's reverse-lexicographic tie-break lets a ca agent
CVE-2026-15801	8.0 HIGH	Cri-o: cri-o: insufficient validation during container checkpoint restore
CVE-2026-94449	7.5 HIGH	Quarkus-smallrye-fault-tolerance: quarkus-smallrye-fault-tolerance: memory leak in @applyg
CVE-2026-75939	7.4 HIGH	Openshift/oc-mirror: release signature verification: openpgp signatureerror checked before
CVE-2026-94368	7.1 HIGH	Noobaa-core: noobaa-core: presigned put url escalation to copyobject via unsigned x-amz-co
CVE-2026-94215	5.5 MEDIUM	Keycloak-services: keycloak-services: cross-realm client read/write via request-level cach
CVE-2026-94184	5.3 MEDIUM	Fetchmail: fetchmail: stack-based buffer overflow in ntlm authentication (fetchmail-sa-202
CVE-2026-94213	4.9 MEDIUM	Keycloak-services: keycloak-services: authorization services policy evaluation endpoint le
CVE-2026-92382	4.1 MEDIUM	Usbredir: usbredir: unbounded iso_packet_desc[] index in usbredirhost_iso_packet() leads t
CVE-2026-94217	3.5 LOW	Keycloak-services: keycloak-services: uma scope merge across resource owners via resource
CVE-2026-94218	3.1 LOW	Keycloak-services: keycloak-services: 2fa setup enforcement bypass via authentication sess

IV. Related Vulnerabilities

Same product: Red Hat Enterprise Linux 10

Same vendor: Red Hat

Same weakness: CWE-121