What’s Vulnerable › Vulnerabilities

CVE-2023-3436: Deadlock in Xpdf 4.04 due to PDF object stream references

• Severity: low (CVSS 3.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-06-27 · updated 2026-06-17
• Weakness: CWE-833

Description

Xpdf 4.04 will deadlock on a PDF object stream whose "Length" field is itself in another object stream.

Affected products

• Xpdf: 4.04

References

• https://forum.xpdfreader.com/viewtopic.php?t=42618
• https://forum.xpdfreader.com/viewtopic.php?t=42618

Get alerted when CVE-2023-3436 or the next vulnerability affects your stack