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CVE-2024-46478

27
FAUCET Score

CVE-2024-46478 is a critical buffer overflow vulnerability affecting HTMLDOC v1.9.18 in the parse_pre function (ps-pdf.cxx:5681). This flaw carries a CVSS score of 9.8, indicating a severe risk due to its network-based attack vector, low complexity, and potential for complete compromise of confidentiality, integrity, and availability. While no active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion has been observed, its high FAUCET Risk Score of 77/100 warrants attention. Organizations using affected versions of HTMLDOC should prioritize patching to mitigate this significant security risk.

Impacted Technologies

VendorProductVersion(s)CPE
1.9.18CPE matchmatch criteria
cpe:2.3:a:htmldoc_project:htmldoc:1.9.18:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.68%
Probability of exploitation in next 30 days
EPSS Percentile
48.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0068 is in the 30th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 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

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / michaelrsweet/htmldoc/commit/683bec548e642cf4a17e003fb34f6bbaf2d27b98
Patch
github.com / michaelrsweet/htmldoc/issues/529
ExploitIssue TrackingThird Party Advisory