CVE-2018-18689
Status: ModifiedMedium (5.3)—
The Portable Document Format (PDF) specification does not provide any information regarding the concrete procedure of how to validate signatures. Consequently, a Signature Wrapping vulnerability exists in multiple products. An attacker can use /ByteRange and xref manipulations that are not detected by the signature-validation logic. This affects Foxit Reader before 9.4 and PhantomPDF before 8.3.9 and 9.x before 9.4. It also affects eXpert PDF 12 Ultimate, Expert PDF Reader, Nitro Pro, Nitro Reader, PDF Architect 6, PDF Editor 6 Pro, PDF Experte 9 Ultimate, PDFelement6 Pro, PDF Studio Viewer 2018, PDF Studio Pro, PDF-XChange Editor and Viewer, Perfect PDF 10 Premium, Perfect PDF Reader, Soda PDF, and Soda PDF Desktop.
CVSS
- Version: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- Base score: 5.3
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 3.73%
- Percentile among all scored CVEs: 89
- Score date: 10/3/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
Affected technologies (17)
Avanquest — Expert PDF UltimateAvanquest — PDF Experte UltimateFoxitsoftware — Foxit ReaderGonitro — Nitro PROGonitro — Nitro ReaderIskysoft — PDF Editor 6Iskysoft — Pdfelement6Pdf-xchange — Pdf-xchange EditorPdfforge — PDF ArchitectQoppa — PDF StudioQoppa — PDF Studio Viewer 2018Sodapdf — Soda PDFSodapdf — Soda PDF DesktopSoft-xpansion — Perfect PDF 10Soft-xpansion — Perfect PDF ReaderTracker-software — Pdf-xchange ViewerVisagesoft — Expert PDF Reader
CWEs
- CWE-347
References
- https://pdf-insecurity.org/signature/evaluation_2018.html
- https://pdf-insecurity.org/signature/signature.html
- https://www.foxitsoftware.com/support/security-bulletins.php
- https://www.pdfa.org/recently-identified-pdf-digital-signature-vulnerabilities/
- https://pdf-insecurity.org/signature/evaluation_2018.html
- https://pdf-insecurity.org/signature/signature.html
- https://www.foxitsoftware.com/support/security-bulletins.php
- https://www.pdfa.org/recently-identified-pdf-digital-signature-vulnerabilities/
Raw JSON (NVD)
Show
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