CVE-2024-46478: htmldoc · n/a
Affects htmldocSource CVE Database V5
Not known to be exploited · CVSS 9.8 Critical.
Data as of 25 Oct 2026, 19:02 UTC
- EPSS
- 0.6% chance of exploitation in 30 days – higher than 51% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 24 Oct 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
GitHubmichaelrsweet/htmldocpkg:github/michaelrsweet/htmldocOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
1. Immediately audit all systems to identify instances of HTMLDOC version 1.9.18 or earlier and isolate them from untrusted networks. 2. Apply vendor patches or updates as soon as they become available; monitor official HTMLDOC repositories and security advisories closely. 3. If patches are unavailable, implement network-level access controls to restrict inbound traffic to services using HTMLDOC, limiting exposure to trusted users only. 4. Employ application-layer protections such as sandboxing HTMLDOC processes or running them with least privilege to contain potential exploitation. 5. Utilize runtime memory protection mechanisms like Address Space Layout Randomization (ASLR), Data Execution Prevention (DEP), and stack canaries to mitigate buffer overflow exploitation. 6. Monitor system and application logs for anomalous behavior indicative of exploitation attempts, including unexpected crashes or unusual process activity. 7. Consider replacing HTMLDOC with alternative, actively maintained document processing tools if feasible. 8. Educate development and operations teams about secure coding practices to prevent similar vulnerabilities in custom integrations. 9. Conduct regular vulnerability scanning and penetration testing focused on document processing components to detect weaknesses early.
Description
HTMLDOC v1.9.18 contains a buffer overflow in parse_pre function,ps-pdf.cxx:5681.