CVE-2026-120458
Medium
Description
Kvazaar through 2.3.2 contains an infinite loop vulnerability in read_header() in src/encmain.c that allows attackers to hang the command-line encoder by supplying a truncated Y4M header. Attackers can provide a crafted .y4m file lacking a terminating newline, causing unchecked EOF reads that hang the process indefinitely while consuming a full CPU core.
SeverityMedium
CVSS5.5
Exploit probability—
ProductKvazaar
PublishedNov 2, 2026
First seenNov 4, 2026
Weakness typeCWE-835CWE-835
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Ultra Video Group Kvazaar | v ≤ 2.3.2 | — |
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