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CVE-2025-2173— libzvbi conv.c vbi_strndup_iconv_ucs2 uninitialized pointer

Quick assessment

Affected
n/a libzvbi
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.

libzvbi是zapping-vbi开源的一个 VBI 实用程序。 libzvbi 0.2.43及之前版本存在安全漏洞，该漏洞源于未初始化指针，可能导致远程攻击。

CVSS 5.3 · Medium EPSS 0.61% · P47

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-2173

Vulnerability Information
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Vulnerability Title
libzvbi conv.c vbi_strndup_iconv_ucs2 uninitialized pointer
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was found in libzvbi up to 0.2.43. It has been classified as problematic. Affected is the function vbi_strndup_iconv_ucs2 of the file src/conv.c. The manipulation of the argument src_length leads to uninitialized pointer. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 0.2.44 is able to address this issue. The patch is identified as 8def647eea27f7fd7ad33ff79c2d6d3e39948dce. It is recommended to upgrade the affected component. The code maintainer was informed beforehand about the issues. She reacted very fast and highly professional.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用未经初始化的指针
Source: CVE Program / CVE List V5
Vulnerability Title
libzvbi 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
libzvbi是zapping-vbi开源的一个 VBI 实用程序。 libzvbi 0.2.43及之前版本存在安全漏洞，该漏洞源于未初始化指针，可能导致远程攻击。
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
- libzvbi 0.2.0 -

II. Public POCs for CVE-2025-2173

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III. Intelligence Information for CVE-2025-2173

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Vendor Advisories for CVE-2025-2173 (3)

Other References for CVE-2025-2173 (1)

Same Patch Batch · n/a · 2025-03-11 · 24 CVEs total

CVE-2025-2177 7.3 HIGH libzvbi search.c vbi_search_new integer overflow
CVE-2025-2176 7.3 HIGH libzvbi io-sim.c vbi_capture_sim_load_caption integer overflow
CVE-2025-2193 5.4 MEDIUM MRCMS org.marker.mushroom.controller.FileController delete.do delete path traversal
CVE-2025-2174 5.3 MEDIUM libzvbi conv.c vbi_strndup_iconv_ucs2 integer overflow
CVE-2025-2215 4.7 MEDIUM Doufox s=doudou path traversal
CVE-2025-2175 4.3 MEDIUM libzvbi _vbi_strndup_iconv integer overflow
CVE-2025-2214 3.5 LOW Microweber Settings index.php cross site scripting
CVE-2025-2196 3.5 LOW MRCMS org.marker.mushroom.controller.FileController upload.do upload cross site scripting
CVE-2025-2195 3.5 LOW MRCMS org.marker.mushroom.controller.FileController rename.do rename cross site scripting
CVE-2025-2194 3.5 LOW MRCMS org.marker.mushroom.controller.FileController list.do list cross site scripting
CVE-2025-25927 OpenMRS 跨站请求伪造漏洞
CVE-2025-25928 OpenMRS 跨站请求伪造漏洞
CVE-2024-51319 Zucchetti Ad Hoc Infinity 安全漏洞
CVE-2025-25929 OpenMRS 安全漏洞
CVE-2025-25925 Openmrs 跨站脚本漏洞
CVE-2021-37787 ABO.CMS 安全漏洞
CVE-2025-25748 Hoteldruid 安全漏洞
CVE-2025-25749 HotelDruid 安全漏洞
CVE-2025-25747 Hoteldruid 跨站脚本漏洞
CVE-2025-25680 LSC Smart Connect Indoor IP Camera 安全漏洞

Showing top 20 of 24 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: libzvbi
Same vendor: n/a
Same weakness: CWE-824

V. Comments for CVE-2025-2173

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