An issue was discovered in freedesktop poppler version 20.12.1, allows remote attackers…
Priority MEDIUM 62CWE-835Published · 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
- Will not fix Red Hat: no fix planned
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-835.
Summary
An issue was discovered in freedesktop poppler version 20.12.1, allows remote attackers to cause a denial of service (DoS) via crafted .pdf file to FoFiType1C::cvtGlyph function.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01167 67th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Will not fix Red Hat: no fix planned
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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:freedesktop:poppler:20.12.1:*:*:*:*:*:*:* | 20.12.1 | Vulnerable | Freedesktop |
- cpe:2.3:a:freedesktop:poppler:20.12.1:*:*:*:*:*:*:* Versions 20.12.1 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 →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 8 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 9 | Affected | No fix planned: Will not fix |
Not affected: 1 product
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2020-36023
- 2026-10-03 Alias added: GHSA-xrv4-xm8w-pm47
References
More Freedesktop Poppler vulnerabilities
- 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-2020-13479 Buffer Overflow vulnerability in HtmlOutputDev::page in poppler 0.75.0 allows attackers to cause a denial of service. CVSS 3.1MEDIUM 6.5
Sources
- CVE-2020-36023 · CVE Program
- CVE-2020-36023 · NVD
- FIRST EPSS
- GHSA-xrv4-xm8w-pm47 · GitHub Advisory Database · CC BY 4.0
- CVE-2020-36023 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences