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CVE-2021-46389

24
FAUCET Score

CVE-2021-46389 is an integer overflow vulnerability affecting the IIPImage High Resolution Streaming Image Server prior to commit 882925b295a80ec992063deffc2a3b0d803c3195, triggered by malformed HTTP query parameters. This high-severity vulnerability (CVSS 7.5) allows unauthenticated attackers to cause a denial of service without user interaction, impacting system availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 2022-01-14CPE matchmatch criteria
cpe:2.3:a:high_resolution_streaming_image_server_project:high_resolution_streaming_image_server:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.18%
Probability of exploitation in next 30 days
EPSS Percentile
64.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0118 is in the 43rd percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / ruven/iipsrv/commit/4ed59265fbbd636dc2fbbf325f8ea37ed300a6d9
PatchThird Party Advisory
github.com / ruven/iipsrv/commit/882925b295a80ec992063deffc2a3b0d803c3195
PatchThird Party Advisory