Cyber Resilience

CVE-2021-28838

HighPublic PoC

Published: 10 August 2021

Published
10 August 2021
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.0104 77.9th percentile
Risk Priority 16 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-28838 is a high-severity NULL Pointer Dereference (CWE-476) vulnerability in Dlink Dap-2330 Firmware. Its CVSS base score is 7.5 (High).

Operationally, ranked in the top 22.1% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

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…

more

when a specific network package are sent to the httpd binary.

CWE(s)
CWE-476

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

dlink
dap-2310 firmware
≤ 2.10rc039
dlink
dap-2330 firmware
1.10rc036 · ≤ 1.10rc036
dlink
dap-2360 firmware
≤ 2.10rc055
dlink
dap-2553 firmware
3.10rc039 · ≤ 3.10rc039
dlink
dap-2660 firmware
≤ 1.15rc131b
dlink
dap-2690 firmware
3.20rc115 · ≤ 3.20rc115
dlink
dap-2695 firmware
≤ 1.20rc093
dlink
dap-3320 firmware
1.05rc027 · ≤ 1.05rc027
dlink
dap-3662 firmware
1.05rc069 · ≤ 1.05rc069

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References