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CVE-2026-58459— gpsd gpsprof Command Injection via gnuplot plot title subtype field

Quick assessment

Affected
ntpsec gpsd
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

ntpsec gpsd是ntpsec组织的一个GPS数据采集与解析服务守护进程 ntpsec gpsd 3.27.5及之前版本存在命令注入漏洞，该漏洞源于gpsprof中存在命令注入问题，可能导致攻击者控制GPS设备子类型值，通过嵌入反引号有效载荷到gnuplot图标题中未正确转义，执行任意shell命令。

CVSS 7.8 · High EPSS 2.86% · P86

Affected Version Matrix 2

VendorProduct Version RangeStatus
ntpsec gpsd ≤ 3.27.5 affected
≤ 4c06658e988f4ced1a7a574ce082a22ef625df56 affected
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I. Basic Information for CVE-2026-58459

Vulnerability Information
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Vulnerability Title
gpsd gpsprof Command Injection via gnuplot plot title subtype field
Source: CVE Program / CVE List V5
Vulnerability Description
gpsd through release-3.27.5, fixed at commit 4c06658, contains a command injection vulnerability in gpsprof that allows attackers who control the GPS device subtype value to execute arbitrary shell commands by embedding backtick payloads in the gnuplot plot title without proper escaping. The subtype field sourced from a DEVICES JSON log entry or NMEA PGRMT sentence is written into a generated gnuplot program via a set title statement with only double-quote characters escaped, enabling arbitrary shell command execution as the user running gnuplot when the victim renders the generated plot through the gpsprof and gnuplot workflow.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
ntpsec gpsd 命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ntpsec gpsd是ntpsec组织的一个GPS数据采集与解析服务守护进程 ntpsec gpsd 3.27.5及之前版本存在命令注入漏洞，该漏洞源于gpsprof中存在命令注入问题，可能导致攻击者控制GPS设备子类型值，通过嵌入反引号有效载荷到gnuplot图标题中未正确转义，执行任意shell命令。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
ntpsec gpsd 0 ~ 3.27.5 -

II. Public POCs for CVE-2026-58459

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 12608 chars
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III. Intelligence Information for CVE-2026-58459

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Patches & Fixes for CVE-2026-58459 (3)

Vendor Advisories for CVE-2026-58459 (1)

Other References for CVE-2026-58459 (1)

IV. Related Vulnerabilities

Same product: gpsd
Same vendor: ntpsec
Same weakness: CWE-78

V. Comments for CVE-2026-58459

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