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01 Record

CVE-2018-18688

The Portable Document Format (PDF) specification does not provide any information regarding the concrete procedure of how to validate signatures. Consequently, an Incremental Saving vulnerability

UnratedPUBLISHEDCNA: mitre
CNA base scoreUnratedNo CNA CVSS vector

02 Description

The Portable Document Format (PDF) specification does not provide any information regarding the concrete procedure of how to validate signatures. Consequently, an Incremental Saving vulnerability

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
1.14% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 66.1% of scored records. A rank, not a probability.
NVD base score
5.3 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2021-01-07 17:38Z5 YR AGO
Last updated
2024-08-05 11:16Z2 YR AGO
Reserved
2018-10-26
Assigning CNA
mitre
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
  • CWE-347Improper Verification of Cryptographic SignatureBase
Data version
5.1
Document digest
f85fbf367c68d3d4870378c3096664f56e7af8e35e7325ccb937fcdb9d7d45bd

05 Affected products

VendorProductVersionsPlatforms
applemacosNot specified—
code-industrymaster_pdf_editorNot specified—
foxitsoftwarefoxit_readerNot specified—
foxitsoftwarephantompdfNot specified—
gonitronitro_proNot specified—
gonitronitro_readerNot specified—
iskysoftpdf_editor_6Not specified—
iskysoftpdfelement6Not specified—
libreofficelibreofficeNot specified—
linuxlinux_kernelNot specified—
microsoftwindowsNot specified—
nuancepower_pdf_standardNot specified—
qoppapdf_studioNot specified—
qoppapdf_studio_viewer_2018Not specified—
soft-xpansionperfect_pdf_10Not specified—
soft-xpansionperfect_pdf_readerNot specified—

06 References