CVE-2022-0650

Root code execution via newBridgessid stack overflow

Published Mar 28, 2023 · Updated Feb 19, 2025

Stack overflow in TP-Link TL-WR940N 3.20.1 Build 200316 Rel.34392n (5553) allows remote authenticated users to execute code via HTTP. The httpd service’s newBridgessid handler copies attacker-controlled data into a fixed-length stack buffer without first validating its length. Access to the adjacent network and valid credentials is required, and successful exploitation runs attacker-controlled code as root.

CVSS severity6.8
Medium
EPSS probability0.72%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack overflow in TP-Link TL-WR940N 3.20.1 Build 200316 Rel.34392n (5553) allows remote authenticated users to execute code via HTTP. The httpd service’s newBridgessid handler copies attacker-controlled data into a fixed-length stack buffer without first validating its length. Access to the adjacent network and valid credentials is required, and successful exploitation runs attacker-controlled code as root.

The record

CVE
CVE-2022-0650
Published
Mar 28, 2023
Updated
Feb 19, 2025
Vendor
TP-Link Systems Inc.
Product
TL-WR940N
Classifications
CWE-121, CWE-787, T1190
Attack vector
adjacent
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 28, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 19, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3.20.1 Build 200316 Rel.34392n (5553)

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesauthenticated

What is affected?

TP-Link Systems Inc. · TL-WR940Nversion=3.20.1 Build 200316 Rel.34392n (5553)

Published CVSS scores

8.0NISTCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
6.8Zero Day InitiativeCVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow
CWE-787Out-of-bounds Write
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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