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CVE-2026-7135— GPAC MP4Box box_code_base.c elng_box_read out-of-bounds

Quick assessment

Affected
n/a GPAC
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.

GPAC是GPAC开源的一款开源的多媒体框架。 GPAC 26.03-DEV-rev105-g8f39a1eb3-master及之前版本存在缓冲区错误漏洞，该漏洞源于MP4Box组件中文件src/isomedia/box_code_base.c的函数elng_box_read对参数elng的操作，可能导致越界读取。

CVSS 5.3 · Medium EPSS 0.16% · P4

Possible ATT&CK Techniques 1 AI

T1210 · Exploitation of Remote Services
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I. Basic Information for CVE-2026-7135

Vulnerability Information
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Vulnerability Title
GPAC MP4Box box_code_base.c elng_box_read out-of-bounds
Source: CVE Program / CVE List V5
Vulnerability Description
A security flaw has been discovered in GPAC up to 26.03-DEV-rev105-g8f39a1eb3-master. Affected by this vulnerability is the function elng_box_read of the file src/isomedia/box_code_base.c of the component MP4Box. Performing a manipulation of the argument elng results in out-of-bounds read. The attack needs to be approached locally. The exploit has been released to the public and may be used for attacks. The patch is named cf6ac48c972eaaee2af270adc3f36615325deb3e. The affected component should be upgraded.
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:L
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Vulnerability Title
GPAC 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GPAC是GPAC开源的一款开源的多媒体框架。 GPAC 26.03-DEV-rev105-g8f39a1eb3-master及之前版本存在缓冲区错误漏洞，该漏洞源于MP4Box组件中文件src/isomedia/box_code_base.c的函数elng_box_read对参数elng的操作，可能导致越界读取。
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
- GPAC 26.03-DEV-rev105-g8f39a1eb3-master cpe:2.3:a:gpac:gpac:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-7135

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III. Intelligence Information for CVE-2026-7135

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Patches & Fixes for CVE-2026-7135 (1)

Vendor Advisories for CVE-2026-7135 (1)

Vendor Pages for CVE-2026-7135 (1)

Other References for CVE-2026-7135 (1)

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IV. Related Vulnerabilities

Same product: GPAC
Same vendor: n/a
Same weakness: CWE-125

V. Comments for CVE-2026-7135

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