Integer Overflow Vulnerability in Freedesktop Poppler Product Line
CVE-2026-93311

5.3MEDIUM

Key Information:

Vendor

Freedesktop

Status
Poppler
Vendor
CVE Published:
18 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-93311?

A vulnerability has been identified within the Freedesktop Poppler library, specifically affecting the SampledFunction component. This issue arises due to an integer overflow triggered by improper handling of the BitsPerSample argument in the SampledFunction::SampledFunction function. As a result, malicious actors may exploit this vulnerability remotely, potentially leading to unexpected behaviors in applications relying on this library. Despite awareness of the issue through an early bug report, the project maintainers have not yet issued a response or fix.

Affected Version(s)

Poppler 26.07.0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-93311 - Proof of Concept

References

https://vuldb.com/vuln/406609
vdb-entrytechnical-description
https://vuldb.com/vuln/406609/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-93311
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

r1ck99 (VulDB User)
VulDB CNA Team
.