CVE-2021-26948

HIGH
Published Mar 3, 20224y ago · Modified Jun 17, 20262w ago
7.8 CVSS 3.1
High
Find Similar
Published Mar 3, 2022 4y ago
Last Modified Jun 17, 2026 2w ago

Description

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.

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

No active exploitation signals — not in CISA KEV and no EPSS score yet.

Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 2

CWE-476 NULL Pointer Dereference Memory Safety
CWE-479

Affected Products 1

VendorProductVersionRange
htmldoc_projecthtmldoc1.9.11any

References 1

  • github.com https://github.com/michaelrsweet/htmldoc/issues/410
    ExploitIssue TrackingPatchThird Party Advisory

Remediation

  • github.com https://github.com/michaelrsweet/htmldoc/issues/410
    ExploitIssue TrackingPatchThird Party Advisory