CVE-2018-18689
Consequently, a Signature Wrapping vulnerability exists in multiple products.
Does this matter?
Lower severity and a low EPSS score (3.63%). Track it; it rarely justifies an emergency change on its own.
Description
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 3.1
- 5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- EPSS
- 3.63% probability · 89th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-347
- Affected
- avanquest/expert pdf ultimate · avanquest/pdf experte ultimate · foxitsoftware/foxit reader · gonitro/nitro pro · gonitro/nitro reader · iskysoft/pdf editor 6 · iskysoft/pdfelement6 · pdf-xchange/pdf-xchange editor · pdfforge/pdf architect · qoppa/pdf studio · qoppa/pdf studio viewer 2018 · sodapdf/soda pdf · sodapdf/soda pdf desktop · soft-xpansion/perfect pdf 10 · soft-xpansion/perfect pdf reader · tracker-software/pdf-xchange viewer · visagesoft/expert pdf reader
- Source
- cve@mitre.org
EPSS 3.6% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://pdf-insecurity.org/signature/evaluation_2018.htmlThird Party Advisory
- https://pdf-insecurity.org/signature/signature.htmlThird Party Advisory
- https://www.foxitsoftware.com/support/security-bulletins.phpVendor Advisory
- https://www.pdfa.org/recently-identified-pdf-digital-signature-vulnerabilities/Third Party Advisory
- https://pdf-insecurity.org/signature/evaluation_2018.htmlThird Party Advisory
- https://pdf-insecurity.org/signature/signature.htmlThird Party Advisory
- https://www.foxitsoftware.com/support/security-bulletins.phpVendor Advisory
- https://www.pdfa.org/recently-identified-pdf-digital-signature-vulnerabilities/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.