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Fencer Intel
medium 5.1

CVE-2018-0449 json

Cisco Jabber Client Framework Insecure Directory Permissions Vulnerability

published 2019-01-10 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-1272

cvss
5.1
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 20%
public exploits
0
none known

Summary

A vulnerability in the Cisco Jabber Client Framework (JCF) software, installed as part of the Cisco Jabber for Mac client, could allow an authenticated, local attacker to corrupt arbitrary files on an affected device that has elevated privileges. The vulnerability exists due to insecure directory permissions set on a JCF created directory. An authenticated attacker with the ability to access an affected directory could create a hard link to an arbitrary location on the affected system. An attacker could convince another user that has administrative privileges to perform an install or update the Cisco Jabber for Mac client to perform such actions, allowing files to be created in an arbitrary location on the disk or an arbitrary file to be corrupted when it is appended to or overwritten.

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
23 mo ago

Exploit prediction

0.28% chance of exploitation in the next 30 days, higher than 20% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.0 5.1 CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H
NVD 3.1 4.2 CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:N/I:H/A:N
NVD 2.0 3.3 AV:L/AC:M/Au:N/C:N/I:P/A:P

Affected products

  • Cisco Cisco Jabber for Mac

Classification

Weakness
  • CWE-275 Permission Issues
  • CWE-732 Incorrect Permission Assignment for Critical Resource

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.