Portable Document Format Signature signature verification
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 4.1 | $0-$5k | 0.00 |
Summary
A vulnerability was found in Portable Document Format and classified as problematic. This issue affects some unknown processing of the component Signature Handler. Such manipulation leads to signature verification. This vulnerability is uniquely identified as CVE-2018-18688. The attack can be launched remotely. No exploit exists. It is suggested to upgrade the affected component.
Details
A vulnerability, which was classified as problematic, has been found in Portable Document Format (the affected version is unknown). Affected by this issue is an unknown code of the component Signature Handler. The manipulation with an unknown input leads to a signature verification vulnerability. Using CWE to declare the problem leads to CWE-347. The product does not verify, or incorrectly verifies, the cryptographic signature for data. Impacted is integrity.
The weakness was disclosed 01/08/2021. The advisory is available at pdfa.org. This vulnerability is handled as CVE-2018-18688. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available.
The commercial vulnerability scanner Qualys is able to test this issue with plugin 371399 (Foxit Reader and PhantomPDF Multiple Vulnerabilities).
Upgrading eliminates this vulnerability.
If you want to get best quality of vulnerability data, you may have to visit VulDB.
Product
Name
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 4.3VulDB Meta Temp Score: 4.1
VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Signature verificationCWE: CWE-347 / CWE-345
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
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Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Timeline
01/08/2021 🔍01/08/2021 🔍
05/04/2025 🔍
Sources
Advisory: pdfa.orgStatus: Confirmed
CVE: CVE-2018-18688 (🔍)
GCVE (CVE): GCVE-0-2018-18688
GCVE (VulDB): GCVE-100-167402
Entry
Created: 01/08/2021 07:11Updated: 05/04/2025 14:41
Changes: 01/08/2021 07:11 (34), 07/27/2024 23:36 (20), 05/04/2025 14:41 (3)
Complete: 🔍
Cache ID: 216::103
If you want to get best quality of vulnerability data, you may have to visit VulDB.
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