CVE-2026-110654
libzvbi through 0.2.45 Out-of-Bounds Write via Teletext DRCS convert_drcs
CVSS Score
6.1
EPSS Score
0.0%
EPSS Percentile
0th
libzvbi through 0.2.45 contains an out-of-bounds write vulnerability in the Teletext decoder that allows attackers to corrupt memory by supplying unvalidated DRCS pixel-mode values in X/28/3 packets. Attackers can send a crafted Teletext stream decoded via vbi_decode with every slot set to DRCS_MODE_6_5_4, causing convert_drcs to overflow chars[48][60] and crash the application.
| CWE | CWE-787 |
| Vendor | zapping-vbi |
| Product | libzvbi |
| Published | Oct 14, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
High
Affected Versions
zapping-vbi / libzvbi
0 ≤ 0.2.45
References
hackmd.io: https://hackmd.io/@haind-pwn/zvbi-teletext-drcs-mode-oob-write github.com: https://github.com/zapping-vbi/zvbi/blob/d3a5ee9f2b047bf16cd1ee5ccf6ec05ee75409d0/src/packet.c#L447 github.com: https://github.com/zapping-vbi/zvbi vulncheck.com: https://www.vulncheck.com/advisories/libzvbi-through-0.2.45-out-of-bounds-write-via-teletext-drcs-convert-drcs
Credits
HaiND from the Post and Telecommunication Institute of Technology