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Vulnerability Database · Debian · Package report

htmldoc: vulnerability history, versions and safety

htmldoc is a package in the Debian ecosystem. Vulert records 41 vulnerabilities for it across 16 releases, from Sep 2009 to Oct 2024. Each vulnerability names the versions it affects, the fixed version to move to, and a workaround where no fix has been published.

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41 vulnerabilities recorded U41
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7 with no fix published

No patched version yet — these are the ones to plan around.

See the unfixed vulnerabilities →
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0 in the last 12 months

Nothing new recorded in the last year.

See the disclosure history →
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0 malicious-package vulnerabilities

No published version shipped hostile code.

See all htmldoc vulnerabilities

Vulert verdict on htmldoc i

Updated on 23 Oct 2026

Careful: 7 of the 41 vulnerabilities Vulert records for this package have no fix yet. Plan around those, or apply the workaround listed for each. The rest have a fixed version to move to.

Long-term outlook: usable, but needs attention 41 vulnerabilities on record across 15 years, none in the last year.

What to do: Plan around the 7 vulnerabilities with no published fix: each lists the affected range and any workaround that reduces exposure. No fix yet: Vulert alerts you the moment one is published. Monitor it with Vulert →

  • Vulnerabilities on record 41 over 15 years · 0 in the last year i
  • Latest disclosure 24 Oct 2024 i
  • Highest CVSS 9.8 i
  • With no published fix 7 i

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01 Versions

Which versions are affected

Every version Vulert holds for htmldoc, newest first, with the vulnerabilities that name it. A version with a count of zero has no recorded vulnerabilities; open a version to see the vulnerabilities it is exposed to.

Newest 16 of 16 versions on record. Severity counts are the vulnerabilities recorded against that exact release.

02 Disclosure history

How often vulnerabilities are recorded

  • 2009 2
  • 2019 2
  • 2021 4
  • 2022 29
  • 2023 2
  • 2024 2

Counted by the year Vulert recorded each vulnerability — the same date the table below shows as disclosed. 0 of the 41 were recorded in the last 12 months.

03 Vulnerabilities

Recorded vulnerabilities for htmldoc

The 5 most severe of 41 vulnerabilities recorded for this package

Search all 41 in the database →
Vulnerability Severity Fixed version ↓ Disclosed ↓
Heap Buffer Overflow Vulnerability in htmldoc: CVE-2021-23165 9.8 critical 1.9.11-4 16 Mar 2022
Integer Overflow in htmldoc Package (CVE-2021-20308) 9.8 critical 1.9.11-3 05 Apr 2021
Double-Free Vulnerability in htmldoc Package 9.8 critical 1.9.11-4 16 Mar 2022
Out-of-Bounds Write Vulnerability in HTMLDOC Package 9.8 critical No fix published 01 Sep 2024
Heap Buffer Overflow in htmldoc 7.8 high 1.9.11-4+deb11u3 27 Apr 2022

Vulnerability wrong, a fix missing, or a package we should cover? Report it and we will fix the record. Report Vulnerability Provide Feedback

Updated: 23/Oct/2026 · Vulnerabilities in our DB: 524315

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Questions

About htmldoc

Is htmldoc safe to use?

Vulert records 41 vulnerabilities for htmldoc in Debian: 0 critical, 0 high, 0 medium and 0 low, plus 41 not yet rated. 7 of them have no published fix yet, so those are the ones to avoid or mitigate.

How many vulnerabilities does htmldoc have?

41 vulnerabilities are recorded for htmldoc in the Debian ecosystem: 0 critical, 0 high, 0 medium and 0 low, plus 41 not yet rated. The ledger on this page lists the same counts next to the date of the most recent disclosure.

How often are new htmldoc vulnerabilities disclosed?

0 vulnerabilities were recorded for htmldoc in the last 12 months, and the oldest entry in this database dates to 02 Sep 2009. Recency matters more than a lifetime total: it shows how actively new issues are being disclosed for the package you are considering.

Which versions of htmldoc are affected?

Each vulnerability on this page lists the affected version range and the fixed version to move to. Open the vulnerability for the version you actually run — fixes are specific to a release line, not to the package as a whole.

How do I monitor htmldoc for upcoming vulnerabilities?

Upload the manifest or SBOM for your application at vulert.com/scanner and Vulert keeps checking the htmldoc version you actually run against new disclosures, then alerts you when one affects it. There is no installation and no source-code access required.