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CVE-2021-29294

HIGH
7.5
CVSS Score
Published: August 10, 2021 at 07:32 PM UTC
Updated: June 17, 2026 at 03:47 AM UTC
2 products affected across 1 vendorDsl 2740R FirmwareDSL-2740R

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Severity
HIGH7.5
Exploit prediction
EPSS 1%

Description

Null Pointer Dereference vulnerability exists in D-Link DSL-2740R UK_1.01, which could let a remove malicious user cause a denial of service via the send_hnap_unauthorized function. It could be triggered by sending crafted POST request to /HNAP1/. NOTE: The DSL-2740R and all hardware revisions are considered End of Life and as such this issue will not be patched

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Dsl 2740R Firmware· D-Link
95%
uk_1.01
dlink-dsl-2740r (same device)
DSL-2740R· D-Linkdevice
80%
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

x_refsource_MISCVendor Advisory
Source: [email protected]
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10213
x_refsource_MISCVendor Advisory
Source: [email protected]
https://www.dlink.com/en/security-bulletin/

CVSS

7.5HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-476

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