Ax1803 Firmware CVE-2022-37820

HIGH

Out-of-bounds Write (CWE-787)

2022-08-25 cve@mitre.org

Memory Corruption Tenda Buffer Overflow Ax1803 Firmware

7.8

CVSS 3.1 · NVD

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Severity by source

NVD PRIMARY

7.8 HIGH

AV:L/AC:L/PR:L/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:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

1

CVE Published

Aug 25, 2022 - 15:15 nvd

HIGH 7.8

DescriptionNVD

Tenda AX1803 v1.0.0.1 was discovered to contain a stack overflow via the ddnsEn parameter in the function formSetSysToolDDNS.

AnalysisAI

Tenda AX1803 v1.0.0.1 was discovered to contain a stack overflow via the ddnsEn parameter in the function formSetSysToolDDNS. Rated high severity (CVSS 7.8), this vulnerability is 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. Tenda AX1803 v1.0.0.1 was discovered to contain a stack overflow via the ddnsEn parameter in the function formSetSysToolDDNS. Affected products include: Tenda Ax1803 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).

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CVE-2022-37820 vulnerability details – vuln.today

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