CVE-2026-111158
Medium
Description
EarthScope libmseed through 3.5.4 contains a heap out-of-bounds read vulnerability in ms3_detect() in parseutils.c that reads past truncated miniSEED 2 record buffers. Attackers can supply a 40 to 47 byte buffer passing MS2_ISVALIDHEADER to msr3_parse() or ms3_detect(), over-reading up to 8 bytes and potentially crashing the process.
SeverityMedium
CVSS5.5
Exploit probability—
ProductEarthscope Libmseed
PublishedOct 15, 2026
First seenOct 15, 2026
Weakness typeCWE-125Out-of-bounds read
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| EarthScope libmseed | v ≤ 3.5.4 | — |
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