CVE catalog

CVE-2021-26948

htmldoc: CVE-2021-26948

[CVE catalog]

Severity
Low
Published
Source
[NVD] · [CVE record]
EPSS
0.84% · Oct 25, 2026

Null pointer dereference in the htmldoc v1.9.11 and before may allow attackers to execute arbitrary code and cause a denial of service via a crafted html file.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

DistributionPackageReleaseVersionStatus
Debianhtmldocsid1.9.24-1fixed
Debianhtmldocforky1.9.24-1fixed
Debianhtmldoctrixie1.9.20-1fixed
Debianhtmldocbookworm1.9.16-1fixed
Ubuntuhtmldocpro1.9.3-1vulnerable
Ubuntuhtmldocpro1.9.7-1vulnerable
Ubuntuhtmldocpro1.9.7-1build1vulnerable
Ubuntuhtmldocpro1.9.7-1ubuntu0.2vulnerable
Ubuntuhtmldocpro1.9.7-1ubuntu0.3vulnerable
Ubuntuhtmldocpro1.9.7-1ubuntu0.3+esm1fixed

Fixed-version evidence

DistributionPackageTypeReleaseFixed versionUrgencyOriginBugs
Debianhtmldocsourcesid1.9.11-4unimportantNot reported[989437]
Debianhtmldocsourceforky1.9.11-4unimportantNot reported[989437]
Debianhtmldocsourcetrixie1.9.11-4unimportantNot reported[989437]
Debianhtmldocsourcebookworm1.9.11-4unimportantNot reported[989437]
Ubuntuhtmldocdebpro1.9.7-1ubuntu0.3+esm1Not reportedUBUNTU-CVE-2021-26948Not reported

[Debian bug #989437]

OpenFactory catalog packages

[Debian 12 (Bookworm)]

  • [htmldoc]Fixed
    Details (2)

    • 1.9.16-1 · amd64 · bookworm

      Fixed · Fixed: 1.9.11-4

      dsa · htmldoc · debian · bookworm; dsa · htmldoc · debian · 12

    • 1.9.16-1 · arm64 · bookworm

      Fixed · Fixed: 1.9.11-4

      dsa · htmldoc · debian · bookworm; dsa · htmldoc · debian · 12

  • [htmldoc-common]Fixed

    Source package: [htmldoc]

    Details (2)

    • 1.9.16-1 · all · bookworm

      Fixed · Fixed: 1.9.11-4

      dsa · htmldoc · debian · bookworm; dsa · htmldoc · debian · 12

    • 1.9.16-1 · all · bookworm

      Fixed · Fixed: 1.9.11-4

      dsa · htmldoc · debian · bookworm; dsa · htmldoc · debian · 12

[Debian 13 (Trixie)]

  • [htmldoc]Fixed
    Details (2)

    • 1.9.20-1 · amd64 · trixie

      Fixed · Fixed: 1.9.11-4

      dsa · htmldoc · debian · 13

    • 1.9.20-1 · arm64 · trixie

      Fixed · Fixed: 1.9.11-4

      dsa · htmldoc · debian · 13

  • [htmldoc-common]Fixed

    Source package: [htmldoc]

    Details (2)

    • 1.9.20-1 · all · trixie

      Fixed · Fixed: 1.9.11-4

      dsa · htmldoc · debian · 13

    • 1.9.20-1 · all · trixie

      Fixed · Fixed: 1.9.11-4

      dsa · htmldoc · debian · 13

Observed:

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database]