CVE-2026-111158CWE-125

CVE-2026-111158

Medium · published October 15, 2026

CVSS v3.1
5.5
EPSS
0%
Percentile
2.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS v4.0
6.8 · CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
EPSS
0.00130 · 2.4th percentile
Weakness
CWE-125 · Out-of-bounds Read
Published
2026-10-15T23:17Z
References (5)
https://github.com/EarthScope/libmseed · [email protected]https://github.com/EarthScope/libmseed/blob/d6e6ad306de5b7bdde072e5a5e3d58ddcc11abd8/parseutils.c#L192-L234 · [email protected]https://github.com/EarthScope/libmseed/commit/c93a36a1381e944b59b10967342ee1cb94304223 · [email protected]https://hackmd.io/@haind-pwn/libmseed-ms3detect-short-header-oob-read · [email protected]https://www.vulncheck.com/advisories/earthscope-libmseed-through-3.5.4-heap-out-of-bounds-read-via-ms3-detect · [email protected]
EPSS history
Timeline
  • 17 OCT 03:28Z
    EPSS moved — → 0%
    epss
  • 15 OCT 18:57Z
    EarthScope libmseed through 3.5.4 Heap Out-of-Bounds Read via ms3_detect
    cvelistv5
  • 15 OCT 18:57Z
    EarthScope libmseed through 3.5.4 Heap Out-of-Bounds Read via ms3_detect
    cvelistv5