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CVE-2020-23899

20
FAUCET Score

CVE-2020-23899 describes a denial-of-service vulnerability in WildBit Viewer v6.6, specifically affecting the wildbit-soft wildbit_viewer product. This vulnerability, a User Mode Write AV, can be triggered by an attacker providing a specially crafted TGA image file. Rated as MEDIUM severity (CVSS 5.5), it requires local access and user interaction (opening the malicious file) to cause a denial of service, with no impact on confidentiality or integrity. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
6.6CPE matchmatch criteria
cpe:2.3:a:wildbit-soft:wildbit_viewer:6.6:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.55%
Probability of exploitation in next 30 days
EPSS Percentile
42.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0054 is in the 46th percentile among its peer group of 5,760 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / Aurorainfinity/vulnerabilities/blob/master/WildBit_Viewer/tga_file_format.md
Third Party Advisory
wildbit-soft.fi / software.html
Product