CVE-2021-36530

HIGH
Published Aug 27, 20214y ago · Modified Jun 17, 20262w ago
8.8 CVSS 3.1
High
Find Similar
Published Aug 27, 2021 4y ago
Last Modified Jun 17, 2026 2w ago

Description

ngiflib 0.4 has a heap overflow in GetByteStr() at ngiflib.c:108 in NGIFLIB_NO_FILE mode, GetByteStr() copy memory buffer without checking the boundary.

CVSS Details

Base Score
8.8
Exploitability
2.8
Impact
5.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector Network
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 1

CWE-787 Out-of-bounds Write Memory Safety

Affected Products 1

VendorProductVersionRange
miniupnp_projectngiflib0.4any

References 1

  • github.com https://github.com/miniupnp/ngiflib/issues/19
    ExploitIssue TrackingPatchThird Party Advisory

Remediation

  • github.com https://github.com/miniupnp/ngiflib/issues/19
    ExploitIssue TrackingPatchThird Party Advisory