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CVE-2018-16863

It was found that RHSA-2018:2918 did not fully fix CVE-2018-16509. An attacker could possibly exploit another variant of the flaw and bypass the -dSAFER protection to, for example, execute arbitrary shell commands via a specially crafted PostScript document. This only affects ghostscript 9.07 as shipped with Red Hat Enterprise Linux 7.

Severity
High 7.8
Published
3 Dec 2018
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
1.2% in the next 30 daysHigher than 69% of CVEs. EPSS by FIRST, 10 Nov 2026
Weakness
Incomplete deny list (CWE-184)OS command injection (CWE-78)
Attack
Needs local access · No login needed · Needs someone to click or open something
Attacker can
Read data · Change data · Take it down
CVSS vector
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Sources
NVD

Affected software

SoftwareAffected versions
GhostscriptServers and applications · cpe:a:artifex:ghostscript
  • Version 9.07

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2018-16863
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2018-16863