Skip to main content

Hg6245D Firmware CVE-2021-27171

CRITICAL
Out-of-bounds Write (CWE-787)
2021-02-10 cve@mitre.org
Buffer Overflow Memory Corruption Hg6245D Firmware
9.8
CVSS 3.1 · NVD
Share

Severity by source

NVD PRIMARY
9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

1
CVE Published
Feb 10, 2021 - 19:15 nvd
CRITICAL 9.8

DescriptionNVD

An issue was discovered on FiberHome HG6245D devices through RP2613. It is possible to start a Linux telnetd as root on port 26/tcp by using the CLI interface commands of ddd and shell (or tshell).

AnalysisAI

An issue was discovered on FiberHome HG6245D devices through RP2613. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Out-of-bounds Write (CWE-787), which allows attackers to write data beyond allocated buffer boundaries leading to code execution or crashes. An issue was discovered on FiberHome HG6245D devices through RP2613. It is possible to start a Linux telnetd as root on port 26/tcp by using the CLI interface commands of ddd and shell (or tshell). Affected products include: Fiberhome Hg6245D Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate write boundaries, use memory-safe languages, enable compiler protections (ASLR, stack canaries).

More in Hg6245D Firmware

View all
CVE-2021-27177 CRITICAL POC
9.8 Feb 10

An issue was discovered on FiberHome HG6245D devices through RP2613. Rated critical severity (CVSS 9.8), this vulnerabil
CVE-2021-27172 CRITICAL POC
9.8 Feb 10

An issue was discovered on FiberHome HG6245D devices through RP2613. Rated critical severity (CVSS 9.8), this vulnerabil
CVE-2021-27170 CRITICAL POC
9.8 Feb 10

An issue was discovered on FiberHome HG6245D devices through RP2613. Rated critical severity (CVSS 9.8), this vulnerabil
CVE-2021-27168 CRITICAL POC
9.8 Feb 10

An issue was discovered on FiberHome HG6245D devices through RP2613. Rated critical severity (CVSS 9.8), this vulnerabil
CVE-2021-27167 CRITICAL POC
9.8 Feb 10

An issue was discovered on FiberHome HG6245D devices through RP2613. Rated critical severity (CVSS 9.8), this vulnerabil
CVE-2021-27166 CRITICAL POC
9.8 Feb 10

An issue was discovered on FiberHome HG6245D devices through RP2613. Rated critical severity (CVSS 9.8), this vulnerabil
CVE-2021-27165 CRITICAL POC
9.8 Feb 10

An issue was discovered on FiberHome HG6245D devices through RP2613. Rated critical severity (CVSS 9.8), this vulnerabil
CVE-2021-27164 CRITICAL POC
9.8 Feb 10

An issue was discovered on FiberHome HG6245D devices through RP2613. Rated critical severity (CVSS 9.8), this vulnerabil
CVE-2021-27163 CRITICAL POC
9.8 Feb 10

An issue was discovered on FiberHome HG6245D devices through RP2613. Rated critical severity (CVSS 9.8), this vulnerabil
CVE-2021-27162 CRITICAL POC
9.8 Feb 10

An issue was discovered on FiberHome HG6245D devices through RP2613. Rated critical severity (CVSS 9.8), this vulnerabil
CVE-2021-27161 CRITICAL POC
9.8 Feb 10

An issue was discovered on FiberHome HG6245D devices through RP2613. Rated critical severity (CVSS 9.8), this vulnerabil
CVE-2021-27160 CRITICAL POC
9.8 Feb 10

An issue was discovered on FiberHome HG6245D devices through RP2613. Rated critical severity (CVSS 9.8), this vulnerabil

Same weakness CWE-787 – Out-of-bounds Write

View all
CVE-2015-3113 CRITICAL POC
9.8
CVE-2011-2462 CRITICAL POC
9.8
CVE-2012-1889 HIGH POC
8.8
CVE-2010-3333 HIGH POC
7.8
CVE-2014-1761 HIGH POC
7.8
CVE-2009-3129 HIGH POC
7.8
CVE-2021-1732 HIGH POC
7.8
CVE-2013-3346 CRITICAL POC
9.8

Same technique Buffer Overflow

View all
CVE-2017-7269 CRITICAL POC
9.8
CVE-2015-5119 CRITICAL POC
9.8
CVE-2015-3113 CRITICAL POC
9.8
CVE-2011-2462 CRITICAL POC
9.8
CVE-2009-0927 HIGH POC
8.8
CVE-2012-1889 HIGH POC
8.8
CVE-2017-11882 HIGH POC
7.8
CVE-2010-3333 HIGH POC
7.8

Share

CVE-2021-27171 vulnerability details – vuln.today
Back

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy