CVE-2026-110654
libzvbi through 0.2.45 Out-of-Bounds Write via Teletext DRCS convert_drcs
zapping-vbi libzvbi
CVSS
6.9MediumExploitationPublic exploit codeCISA's assessment says proof of concept code is public, assessed 20 Oct 2026. Not in the KEV catalogCISA via CVE List
Exploit odds (EPSS)0.17%Chance of exploitation activity in the next 30 days, higher than 6% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
What fixes it
No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.
Description
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.
Text from CVE List
Affected versions 1
- libzvbiaffected: all versions through 0.2.45CVE List
References 4
- vulncheck.com/advisories/libzvbi-through-0.2.45-out-of-bounds-write-via-teletext-drcs-convert-drcsAdvisoryvia CVE List
- hackmd.io/@haind-pwn/zvbi-teletext-drcs-mode-oob-writeExploitvia CVE List
- github.com/zapping-vbi/zvbi/blob/d3a5ee9f2b047bf16cd1ee5ccf6ec05ee75409d0/src/packet.c#L447Referencevia CVE List
- github.com/zapping-vbi/zvbiReferencevia CVE List