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CVE-2023-36356

HIGH
7.7
CVSS Score
Published: June 22, 2023 at 12:00 AM UTC
Updated: June 17, 2026 at 06:06 AM UTC
8 products affected across 1 vendorTl WR841N FirmwareTl WR940N FirmwareTl WR740N Firmware

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Severity
HIGH7.7
Exploit prediction
EPSS 0.7%
SSVC
No known exploit

Description

TP-Link TL-WR940N V2/V4/V6, TL-WR841N V8, TL-WR941ND V5, and TL-WR740N V1/V2 were discovered to contain a buffer read out-of-bounds via the component /userRpm/VirtualServerRpm. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted GET request.

Affected

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

Tl WR740N Firmware· TP-Link
95%
All versions
tp-link-tl-wr740n (same device)
Tl WR841N Firmware· TP-Link
95%
All versions
Tl WR940N Firmware· TP-Link
95%
All versions
tp-link-tl-wr940n (same device)
Tl WR941ND Firmware· TP-Link
95%
All versions
tp-link-tl-wr941nd (same device)
TL-WR841N· TP-Link
90%
All versions
Tl WR740N· TP-Linkdevice
80%
All versions
TL-WR940N· TP-Linkdevice
80%
All versions
TL-WR941ND· TP-Linkdevice
80%
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

ExploitThird Party Advisory
Source: [email protected]
https://github.com/a101e-IoTvul/iotvul/blob/main/tp-link/4/TL-WR941ND_TL-WR940N_TL-WR740N_userRpm_VirtualServerRpm.md

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.7HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-125

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