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CVE-2017-9921

24
FAUCET Score

CVE-2017-9921 describes a critical vulnerability in IrfanView version 4.44 (32bit) when used with the TOOLS Plugin 4.50. This flaw allows attackers to trigger a denial of service or execute arbitrary code by enticing a user to open a specially crafted file. With a CVSS score of 7.8 (High), the vulnerability has a low attack complexity and requires user interaction, but can lead to complete compromise of confidentiality, integrity, and availability. Despite its high severity, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
4.44CPE matchmatch criteria
cpe:2.3:a:irfanview:irfanview:4.44:*:*:*:*:*:x86:*
4.50CPE matchmatch criteria
cpe:2.3:a:irfanview:tools:4.50:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.8HIGH

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.46%
Probability of exploitation in next 30 days
EPSS Percentile
37.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0046 is in the 38th percentile among its peer group of 11,616 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / wlinzi/security_advisories/tree/master/CVE-2017-9921
Third Party Advisory