What’s Vulnerable › Vulnerabilities

CVE-2021-20308

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-04-05 · updated 2026-06-17
• Weakness: CWE-190

Description

Integer overflow in the htmldoc 1.9.11 and before may allow attackers to execute arbitrary code and cause a denial of service that is similar to CVE-2017-9181.

Affected products

• Debian Linux: 9.0
• htmldoc: through 1.9.11

References

• https://bugzilla.redhat.com/show_bug.cgi?id=1946289
• https://github.com/michaelrsweet/htmldoc/issues/423
• https://lists.debian.org/debian-lts-announce/2021/07/msg00000.html
• https://bugzilla.redhat.com/show_bug.cgi?id=1946289
• https://github.com/michaelrsweet/htmldoc/issues/423
• https://lists.debian.org/debian-lts-announce/2021/07/msg00000.html

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