What’s Vulnerable › Vulnerabilities

CVE-2018-18456

• Severity: medium (CVSS 5.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-10-18 · updated 2026-06-17
• Weakness: CWE-125

Description

The function Object::isName() in Object.h (called from Gfx::opSetFillColorN) in Xpdf 4.00 allows remote attackers to cause a denial of service (stack-based buffer over-read) via a crafted pdf file, as demonstrated by pdftoppm.

Affected products

• Xpdf: 4.00

References

• https://forum.xpdfreader.com/viewtopic.php?f=3&t=41217
• https://github.com/TeamSeri0us/pocs/tree/master/xpdf/2018_10_16/pdftoppm
• https://forum.xpdfreader.com/viewtopic.php?f=3&t=41217
• https://github.com/TeamSeri0us/pocs/tree/master/xpdf/2018_10_16/pdftoppm

Get alerted when CVE-2018-18456 or the next vulnerability affects your stack