#VU105977 Integer overflow in zvbi - CVE-2025-2174

Vulnerability identifier: #VU105977

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2025-2174

CWE-ID: CWE-190

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
zvbi
Universal components / Libraries / Libraries used by multiple products

Vendor: zapping-vbi

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to integer overflow within the bi_strndup_iconv_ucs2() function in src/conv.c. A remote attacker can pass specially crafted data to the application, trigger integer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

zvbi: 0.2.36 - 0.2.43

---

External links
https://github.com/zapping-vbi/zvbi/commit/ca1672134b3e2962cd392212c73f44f8f4cb489f
https://github.com/zapping-vbi/zvbi/releases/tag/v0.2.44
https://github.com/zapping-vbi/zvbi/security/advisories/GHSA-g7cg-7gw9-v8cf
https://vuldb.com/?ctiid.299203
https://vuldb.com/?id.299203
https://vuldb.com/?submit.512800

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.