CVE-2021-28838

Published: Aug 10, 2021Modified: Jun 17, 2026

7.5

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitability: 3.9 / Impact: 3.6

Source: NVD

Description

Null pointer dereference vulnerability in D-Link DAP-2310 2,10RC039, DAP-2330 1.10RC036 BETA, DAP-2360 2.10RC055, DAP-2553 3.10rc039 BETA, DAP-2660 1.15rc131b, DAP-2690 3.20RC115 BETA, DAP-2695 1.20RC093, DAP-3320 1.05RC027 BETA and DAP-3662 1.05rc069 in the sbin/httpd binary. The crash happens at the `atoi' operation when a specific network package are sent to the httpd binary.

Affected (14)

Products: Dlink: Dap 2310 Firmware, Dap 2330 Firmware, Dap 2360 Firmware, Dap 2553 Firmware, Dap 2660 Firmware, Dap 2690 Firmware, Dap 2695 Firmware, Dap 3320 Firmware, Dap 3662 Firmware

9 products

Configuration A

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Dlink Dap 2310 Firmware	Up to 2.10rc039

Running on/with	Platform Versions
Dlink Dap 2310	All versions

Configuration B

2 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Dlink Dap 2330 Firmware	Before 1.10rc036
Dlink Dap 2330 Firmware	Version 1.10rc036 beta

Running on/with	Platform Versions
Dlink Dap 2330	All versions

Configuration C

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Dlink Dap 2360 Firmware	Up to 2.10rc055

Running on/with	Platform Versions
Dlink Dap 2360	All versions

Configuration D

2 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Dlink Dap 2553 Firmware	Before 3.10rc039
Dlink Dap 2553 Firmware	Version 3.10rc039 beta

Running on/with	Platform Versions
Dlink Dap 2553	All versions

Configuration E

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Dlink Dap 2660 Firmware	Up to 1.15rc131b

Running on/with	Platform Versions
Dlink Dap 2660	All versions

Configuration F

2 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Dlink Dap 2690 Firmware	Before 3.20rc115
Dlink Dap 2690 Firmware	Version 3.20rc115 beta

Running on/with	Platform Versions
Dlink Dap 2690	All versions

Configuration G

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Dlink Dap 2695 Firmware	Up to 1.20rc093

Running on/with	Platform Versions
Dlink Dap 2695	All versions

Configuration H

2 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Dlink Dap 3320 Firmware	Before 1.05rc027
Dlink Dap 3320 Firmware	Version 1.05rc027 beta

Running on/with	Platform Versions
Dlink Dap 3320	All versions

Configuration I

2 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Dlink Dap 3662 Firmware	Before 1.05rc069
Dlink Dap 3662 Firmware	Version 1.05rc069 beta

Running on/with	Platform Versions
Dlink Dap 3662	All versions

Related CWEs

CWE-476

NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

References (6)

https://github.com/zyw-200/EQUAFL/blob/main/dlink-email-cve.pdf

Source: cve@mitre.org

ExploitThird Party Advisory

https://github.com/zyw-200/EQUAFL/blob/main/dlink-email-cve2.pdf

Source: cve@mitre.org

Third Party Advisory

https://www.dlink.com/en/security-bulletin/

Source: cve@mitre.org

Vendor Advisory

https://github.com/zyw-200/EQUAFL/blob/main/dlink-email-cve.pdf

Source: af854a3a-2127-422b-91ae-364da2661108

ExploitThird Party Advisory

https://github.com/zyw-200/EQUAFL/blob/main/dlink-email-cve2.pdf

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

https://www.dlink.com/en/security-bulletin/

Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory

Timeline

No history available yet.