Improper signature verification in Freedesktop Poppler
Priority LOW 19CWE-347Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- Partial Red Hat: 5 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-347.
Summary
NSSCryptoSignBackend.cc in Poppler before 25.04.0 does not verify the adbe.pkcs7.sha1 signatures on documents, resulting in potential signature forgeries.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00112 1st percentileScored 2026-11-07
Fix Partial Poppler (freedesktop): 25.04.0Red Hat: 5 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- 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 |
|---|---|---|---|---|---|
| Freedesktop | Poppler | before 25.04.0 | 25.04.0 | Patch available | CNA |
- Poppler VendorFreedesktop Affected before 25.04.0 Fixed in 25.04.0 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:freedesktop:poppler:*:*:*:*:*:*:*:* | before 25.04.0 | Vulnerable | Freedesktop |
- cpe:2.3:a:freedesktop:poppler:*:*:*:*:*:*:*:* Versions before 25.04.0 Vulnerable ·Freedesktop
Remediation
- Fix · CNA Poppler (freedesktop) Fixed in 25.04.0
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 6 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 7 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
Timeline
- 2026-10-02 Threatist record created from CVE-2025-43903
- 2026-10-03 Alias added: GHSA-4w9g-4h2x-7qxq
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-2020-18422 An issue was discovered in freedesktop poppler version 20.12.1, allows remote attackers… CVSS 3.1MEDIUM 6.5
Sources
- CVE-2025-43903 · CVE Program
- CVE-2025-43903 · NVD
- FIRST EPSS
- GHSA-4w9g-4h2x-7qxq · GitHub Advisory Database · CC BY 4.0
- CVE-2025-43903 · 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