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CVE-2026-111158— EarthScope libmseed through 3.5.4 Heap Out-of-Bounds Read via ms3_detect

Quick assessment

Affected
EarthScope libmseed
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

EarthScope libmseed 版本 3.5.4 及之前版本在 parseutils.c 文件的 ms3_detect() 函数中存在堆溢出读取漏洞，该漏洞会读取超出截断的 miniSEED 2 记录缓冲区边界的数据。攻击者可构造长度为 40 至 47 字节的数据缓冲区，并通过 MS2_ISVALIDHEADER 标志调用 msr3_parse() 或 ms3_detect() 函数，从而越界读取最多 8 字节数据，可能导致进程崩溃。

CVSS 5.5 · Medium EPSS 0.13% · P2

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 1

VendorProduct Version RangeStatus
EarthScope libmseed ≤ 3.5.4 affected
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I. Basic Information for CVE-2026-111158

Vulnerability Information
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Vulnerability Title
EarthScope libmseed through 3.5.4 Heap Out-of-Bounds Read via ms3_detect
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
EarthScope libmseed 0 ~ 3.5.4 -

II. Public POCs for CVE-2026-111158

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III. Intelligence Information for CVE-2026-111158

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Patches & Fixes for CVE-2026-111158 (1)

Vendor Advisories for CVE-2026-111158 (1)

Security Blog Posts for CVE-2026-111158 (1)

Other References for CVE-2026-111158 (1)

IV. Related Vulnerabilities

Same weakness: CWE-125