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High severity · published Mar 28, 2023
CVE-2022-0650
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link TL-WR940N 3.20.1 Build 200316 Rel.34392n (5553) routers
8.0
CVSS
0.7%
EPSS
No
On KEV
Description
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link TL-WR940N 3.20.1 Build 200316 Rel.34392n (5553) routers. Authentication is required to exploit this vulnerability. The specific flaw exists within the httpd service, which listens on TCP port 80 by default. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-13993.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 54% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TL
TL-WR940N · TP-Link
3.20.1 Build 200316 Rel.34392n (5553) · source: vendor
TF
Tl-wr940n Firmware · Tp-link
before 211111 · source: NVD
Affected product
TL
TL-WR940N
TP-Link
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-0650
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-0650
Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-22-407/
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