Read the docs
TI-2020-13479 Aliases CVE-2020-18839GHSA-9qxr-688p-9w44

Buffer Overflow vulnerability in HtmlOutputDev::page in poppler 0.75.0 allows attackers to cause a denial of service.

Priority MEDIUM 62CWE-787Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

Buffer Overflow vulnerability in HtmlOutputDev::page in poppler 0.75.0 allows attackers to cause a denial of service.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00652 51st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:freedesktop:poppler:0.75.0:*:*:*:*:*:*:*0.75.0VulnerableFreedesktop
  • cpe:2.3:a:freedesktop:poppler:0.75.0:*:*:*:*:*:*:* Versions 0.75.0 Vulnerable ·Freedesktop

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Not affected: 4 products
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-18839
  2. 2026-10-03 Alias added: GHSA-9qxr-688p-9w44
  3. 2026-10-14 EPSS moved to the 50th–90th percentile

References

Exploit 1

  • TI-2021-11232 Integer overflow in Apple macOS KEVCVSS 3.1HIGH 7.8
  • TI-2025-32126 An issue in the pdfseparate utility of freedesktop poppler v25.04.0 allows attackers to… CVSS 3.1MEDIUM 6.5
  • TI-2022-17985 An issue was discovered in Poppler 22.08.0. CVSS 3.1MEDIUM 6.5
  • TI-2022-17247 A reachable Object::getString assertion in Poppler 22.07.0 allows attackers to cause a… CVSS 3.1MEDIUM 6.5
  • TI-2022-17245 In Poppler 22.07.0, PDFDoc::savePageAs in PDFDoc.c callows attackers to cause a… CVSS 3.1MEDIUM 6.5
  • TI-2020-18422 An issue was discovered in freedesktop poppler version 20.12.1, allows remote attackers… CVSS 3.1MEDIUM 6.5
See all 87 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences