CVE-2015-1877Public exploitNetwork attack vector

Arbitrary command execution via dash variable collision

Published Jun 2, 2021 · Updated Aug 6, 2024

Command injection in xdg-utils 1.1.0 rc1 on Debian allows remote attackers to execute arbitrary commands when a crafted file is opened. A dash dynamic-scope collision in open_generic_xdg_mime makes xdg-open parse the input as a desktop launcher and run its Exec command. The path requires dash as /bin/sh and a generic desktop environment rather than KDE, GNOME, MATE, XFCE, or Enlightenment.

CVSS severity8.8
High
EPSS probability3.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in xdg-utils 1.1.0 rc1 on Debian allows remote attackers to execute arbitrary commands when a crafted file is opened. A dash dynamic-scope collision in open_generic_xdg_mime makes xdg-open parse the input as a desktop launcher and run its Exec command. The path requires dash as /bin/sh and a generic desktop environment rather than KDE, GNOME, MATE, XFCE, or Enlightenment.

The record

CVE
CVE-2015-1877
Published
Jun 2, 2021
Updated
Aug 6, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-77, T1204.002, T1059.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 2, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 6, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
6.8NIST NVDAV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1204.002User Execution: Malicious File
T1059.004Command and Scripting Interpreter: Unix Shell

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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