CVE-2021-28838
7.5 · HIGHOverview
CVE-2021-28838 is a high-severity vulnerability affecting dlink dap-2310_firmware. It was published on August 10, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from dlink. Update dap-2310_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| dlink | dap-2310_firmware | 0 | Affected |
| dlink | dap-2330_firmware | >= 0, < 1.10rc036 | Affected |
| dlink | dap-2360_firmware | 0 | Affected |
| dlink | dap-2553_firmware | >= 0, < 3.10rc039 | Affected |
| dlink | dap-2660_firmware | 0 | Affected |
| dlink | dap-2690_firmware | >= 0, < 3.20rc115 | Affected |
| dlink | dap-2695_firmware | 0 | Affected |
| dlink | dap-3320_firmware | >= 0, < 1.05rc027 | Affected |
| dlink | dap-3662_firmware | >= 0, < 1.05rc069 | Affected |
References
Frequently Asked Questions
What is CVE-2021-28838?
CVE-2021-28838 is a high-severity vulnerability affecting dlink dap-2310_firmware. It was published on August 10, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH).
How severe is CVE-2021-28838?
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2021-28838?
Check the references section for vendor advisories and patches from dlink. Update dap-2310_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2021-28838?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-28838 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
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Browser-based exploitation validates findings with real proof-of-concept.
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