CVE-2021-20308
CRITICAL
9.8
CVSS Score
Published: April 5, 2021 at 09:32 PM UTC
Updated: June 17, 2026 at 03:33 AM UTC
4 products affected across 4 vendorsDebian LinuxProject HtmldocProject Htmldoc
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Severity
CRITICAL9.8
Exploit prediction
EPSS 2%
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
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.
References (3)
x_refsource_MISCExploitIssue TrackingThird Party Advisory
Source: [email protected]
https://bugzilla.redhat.com/show_bug.cgi?id=1946289x_refsource_MISCExploitIssue TrackingThird Party Advisory
Source: [email protected]
https://github.com/michaelrsweet/htmldoc/issues/423Mailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2021/07/msg00000.htmlCVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-190
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