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CVE-2026-59692— Gstreamer1-plugins-bad-free: gstreamer: dtls certificate subject dn stack buffer overflow in openssl_verify_callback

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.

GStreamer是GStreamer组织开源的一套用于处理流媒体的框架。 GStreamer存在缓冲区错误漏洞，该漏洞源于DTLS握手期间未对固定大小的栈缓冲区进行边界检查，远程未经身份验证的攻击者可发送过大的Subject DN证书，导致栈缓冲区溢出和进程崩溃，造成拒绝服务。

CVSS 7.5 · High EPSS 1.00% · P62 Updated Sep 10, 2026

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 16

Vendor	Product	Version Range	Status
Red Hat	Red Hat Enterprise Linux 10	`0:1.26.7-2.el10_2.6< *`	unaffected
Red Hat	Red Hat Enterprise Linux 10.0 Extended Update Support	`0:1.24.11-3.el10_0.6< *`	unaffected
Red Hat	Red Hat Enterprise Linux 6	`any`	affected
Red Hat	Red Hat Enterprise Linux 7	`any`	affected
Red Hat	Red Hat Enterprise Linux 7 Extended Lifecycle Support	`0:1.10.4-7.el7_9< *`	unaffected
Red Hat	Red Hat Enterprise Linux 8	`0:1.16.1-9.el8_10.1< *`	unaffected
Red Hat	Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support	`0:1.16.1-4.el8_4.4< *`	unaffected
Red Hat	Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On	`0:1.16.1-4.el8_4.4< *`	unaffected
Red Hat	Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support	`0:1.16.1-4.el8_6.4< *`	unaffected
Red Hat	Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On	`0:1.16.1-4.el8_6.4< *`	unaffected
Red Hat	Red Hat Enterprise Linux 8.8 Telecommunications Update Service	`0:1.16.1-4.el8_8.4< *`	unaffected
Red Hat	Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions	`0:1.16.1-4.el8_8.4< *`	unaffected
Red Hat	Red Hat Enterprise Linux 9	`0:1.22.12-7.el9_8.3< *`	unaffected
Red Hat	Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions	`0:1.18.4-9.el9_2.5< *`	unaffected
Red Hat	Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions	`0:1.22.1-6.el9_4.6< *`	unaffected
Red Hat	Red Hat Enterprise Linux 9.6 Extended Update Support	`0:1.22.12-5.el9_6.6< *`	unaffected

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I. Basic Information for CVE-2026-59692

Vulnerability Information

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Vulnerability Title

Gstreamer1-plugins-bad-free: gstreamer: dtls certificate subject dn stack buffer overflow in openssl_verify_callback

Source: CVE Program / CVE List V5

Vulnerability Description

A stack buffer overflow vulnerability was found in GStreamer's DTLS plugin. During a DTLS handshake, the peer certificate Subject Distinguished Name is printed into a fixed-size 2048-byte stack buffer without bounds checking. A remote unauthenticated attacker can send a certificate with an oversized Subject DN that exceeds the buffer, causing a stack buffer overflow and process crash, resulting in denial of service.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:N/AC:L/PR:N/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

Vulnerability Title

GStreamer 缓冲区错误漏洞

Source: CNNVD (China National Vulnerability Database)

Vulnerability Description

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
Red Hat	Red Hat Enterprise Linux 10	0:1.26.7-2.el10_2.6 ~ *	`cpe:/o:redhat:enterprise_linux:10.2`
Red Hat	Red Hat Enterprise Linux 10.0 Extended Update Support	0:1.24.11-3.el10_0.6 ~ *	`cpe:/o:redhat:enterprise_linux_eus:10.0`
Red Hat	Red Hat Enterprise Linux 7 Extended Lifecycle Support	0:1.10.4-7.el7_9 ~ *	`cpe:/o:redhat:rhel_els:7`
Red Hat	Red Hat Enterprise Linux 8	0:1.16.1-9.el8_10.1 ~ *	`cpe:/a:redhat:enterprise_linux:8::appstream`
Red Hat	Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support	0:1.16.1-4.el8_4.4 ~ *	`cpe:/a:redhat:rhel_aus:8.4::appstream`
Red Hat	Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On	0:1.16.1-4.el8_4.4 ~ *	`cpe:/a:redhat:rhel_aus:8.4::appstream`
Red Hat	Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support	0:1.16.1-4.el8_6.4 ~ *	`cpe:/a:redhat:rhel_aus:8.6::appstream`
Red Hat	Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On	0:1.16.1-4.el8_6.4 ~ *	`cpe:/a:redhat:rhel_aus:8.6::appstream`
Red Hat	Red Hat Enterprise Linux 8.8 Telecommunications Update Service	0:1.16.1-4.el8_8.4 ~ *	`cpe:/a:redhat:rhel_e4s:8.8::appstream`
Red Hat	Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions	0:1.16.1-4.el8_8.4 ~ *	`cpe:/a:redhat:rhel_e4s:8.8::appstream`
Red Hat	Red Hat Enterprise Linux 9	0:1.22.12-7.el9_8.3 ~ *	`cpe:/a:redhat:enterprise_linux:9::appstream`
Red Hat	Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions	0:1.18.4-9.el9_2.5 ~ *	`cpe:/a:redhat:rhel_e4s:9.2::appstream`
Red Hat	Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions	0:1.22.1-6.el9_4.6 ~ *	`cpe:/a:redhat:rhel_e4s:9.4::appstream`
Red Hat	Red Hat Enterprise Linux 9.6 Extended Update Support	0:1.22.12-5.el9_6.6 ~ *	`cpe:/a:redhat:rhel_eus:9.6::appstream`
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`

II. Public POCs for CVE-2026-59692

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2026-59692

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Patches & Fixes for CVE-2026-59692 (2)

Vendor Advisories for CVE-2026-59692 (13)

🔗 cve-details Read full article vdb-entry x_refsource_REDHAT
🔗 2497344 – (CVE-2026-59692) CVE-2026-59692 gstreamer: gstreamer: DTLS certificate Subject DN stack buffer overflow in openssl_verify_callback Read full article issue-tracking x_refsource_REDHAT
🔗 RHSA-2026:54658 - Security Advisory - Red Hat Customer Portal vendor-advisory x_refsource_REDHAT
🔗 RHSA-2026:54659 - Security Advisory - Red Hat Customer Portal vendor-advisory x_refsource_REDHAT
🔗 RHSA-2026:56772 - Security Advisory - Red Hat Customer Portal vendor-advisory x_refsource_REDHAT
🔗 RHSA-2026:47179 - Security Advisory - Red Hat Customer Portal vendor-advisory x_refsource_REDHAT
🔗 RHSA-2026:56658 - Security Advisory - Red Hat Customer Portal Read full article vendor-advisory x_refsource_REDHAT
🔗 RHSA-2026:47731 - Security Advisory - Red Hat Customer Portal vendor-advisory x_refsource_REDHAT
🔗 RHSA-2026:54660 - Security Advisory - Red Hat Customer Portal vendor-advisory x_refsource_REDHAT
🔗 RHSA-2026:54664 - Security Advisory - Red Hat Customer Portal vendor-advisory x_refsource_REDHAT
🔗 RHSA-2026:47180 - Security Advisory - Red Hat Customer Portal vendor-advisory x_refsource_REDHAT
🔗 RHSA-2026:54752 - Security Advisory - Red Hat Customer Portal vendor-advisory x_refsource_REDHAT
🔗 RHSA-2026:54665 - Security Advisory - Red Hat Customer Portal Read full article vendor-advisory x_refsource_REDHAT

https://www.cve.org/CVERecord?id=CVE-2026-59692

IV. Related Vulnerabilities

Same product: Red Hat Enterprise Linux 10

Same vendor: Red Hat

Same weakness: CWE-121

V. Comments for CVE-2026-59692

No comments yet

Goal Reached Thanks to every supporter — we hit 100%!

CVE-2026-59692— Gstreamer1-plugins-bad-free: gstreamer: dtls certificate subject dn stack buffer overflow in openssl_verify_callback

Quick assessment

Possible ATT&CK Techniques 1 AI

Affected Version Matrix 16

I. Basic Information for CVE-2026-59692

Vulnerability Information

Vulnerability Title

Vulnerability Description

CVSS Information

Vulnerability Type

Vulnerability Title

Vulnerability Description

CVSS Information

Vulnerability Type

Affected Products

II. Public POCs for CVE-2026-59692

III. Intelligence Information for CVE-2026-59692

Patches & Fixes for CVE-2026-59692 (2)

Vendor Advisories for CVE-2026-59692 (13)

IV. Related Vulnerabilities

V. Comments for CVE-2026-59692

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