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TI-2016-08044 Aliases CVE-2016-9928GHSA-q477-8j82-fjq4

Improper privilege management in MCabber

Priority MEDIUM 40CWE-269Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Privilege escalation
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-269.

Summary

MCabber before 1.0.4 is vulnerable to roster push attacks, which allows remote attackers to intercept communications, or add themselves as an entity on a 3rd party's roster as another user, which will also garner associated privileges, via crafted XMPP packets.

Why it matters now

EPSS 0.04512 91st percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix Fixed MCabber (MCabber): 1.0.4

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
MCabberMCabberbefore 1.0.41.0.4Patch availableCNA
  • MCabber VendorMCabber Affected before 1.0.4 Fixed in 1.0.4 Patch available CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:mcabber:mcabber:*:*:*:*:*:*:*:*1.0.0 to before 1.0.4VulnerableMCabber
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*16.04VulnerableCanonical
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*8.0VulnerableDebian
  • cpe:2.3:a:mcabber:mcabber:*:*:*:*:*:*:*:* Versions 1.0.0 to before 1.0.4 Vulnerable ·MCabber
  • cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* Versions 16.04 Vulnerable ·Canonical
  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian

Remediation

  • Fix · CNA MCabber (MCabber) Fixed in 1.0.4

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2016-9928
  2. 2026-10-03 Alias added: GHSA-q477-8j82-fjq4

References

Exploit 2

Patch 1

Advisory 6

  • TI-2017-03606 An incorrect implementation of "XEP-0280: Message Carbons" in multiple XMPP clients… CVSS 3.0MEDIUM 5.9

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences