Details of VAR-202202-1344

ID

VAR-202202-1344

CVE

CVE-2021-44864

TITLE

TP-Link WR886N Classic buffer overflow vulnerability in

Trust: 0.8

sources: JVNDB: JVNDB-2021-018306

DESCRIPTION

TP-Link WR886N 3.0 1.0.1 Build 150127 Rel.34123n is vulnerable to Buffer Overflow. Authenticated attackers can crash router httpd services via /userRpm/PingIframeRpm.htm request which contains redundant & in parameter. TP-Link WR886N Exists in a classic buffer overflow vulnerability.Service operation interruption (DoS) It may be in a state

Trust: 1.71

sources: NVD: CVE-2021-44864 // JVNDB: JVNDB-2021-018306 // VULMON: CVE-2021-44864

AFFECTED PRODUCTS

vendor:	tp link	model:	wn886n	scope:	eq	version:	1.0.1	Trust: 1.0
vendor:	tp link	model:	tl-wr886n	scope:	eq	version:	tl-wr886n firmware 3.0 1.0.1 build 150127 rel.34123n	Trust: 0.8
vendor:	tp link	model:	tl-wr886n	scope:	eq	version:	-	Trust: 0.8

sources: JVNDB: JVNDB-2021-018306 // NVD: CVE-2021-44864

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2021-44864
value:	MEDIUM
Trust: 1.0
NVD:	CVE-2021-44864
value:	MEDIUM
Trust: 0.8
CNNVD:	CNNVD-202202-720
value:	MEDIUM
Trust: 0.6
VULMON:	CVE-2021-44864
value:	MEDIUM
Trust: 0.1

nvd@nist.gov:	CVE-2021-44864
severity:	MEDIUM
baseScore:	4.0
vectorString:	AV:N/AC:L/AU:S/C:N/I:N/A:P
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	SINGLE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	PARTIAL
exploitabilityScore:	8.0
impactScore:	2.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.9

nvd@nist.gov:	CVE-2021-44864
baseSeverity:	MEDIUM
baseScore:	6.5
vectorString:	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	LOW
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	HIGH
exploitabilityScore:	2.8
impactScore:	3.6
version:	3.1
Trust: 1.0
NVD:	CVE-2021-44864
baseSeverity:	MEDIUM
baseScore:	6.5
vectorString:	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	LOW
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	HIGH
exploitabilityScore:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8

sources: VULMON: CVE-2021-44864 // JVNDB: JVNDB-2021-018306 // CNNVD: CNNVD-202202-720 // NVD: CVE-2021-44864

PROBLEMTYPE DATA

problemtype:	CWE-120	Trust: 1.0
problemtype:	Classic buffer overflow (CWE-120) [NVD evaluation ]	Trust: 0.8

sources: JVNDB: JVNDB-2021-018306 // NVD: CVE-2021-44864

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202202-720

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202202-720

PATCH

title:	Top Page	url:	https://www.tp-link.com.cn/	Trust: 0.8
title:	TP-Link WR886N Buffer error vulnerability fix	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=181050	Trust: 0.6
title:	-	url:	https://github.com/zhlu32/cve-my	Trust: 0.1

sources: VULMON: CVE-2021-44864 // JVNDB: JVNDB-2021-018306 // CNNVD: CNNVD-202202-720

EXTERNAL IDS

db:	NVD	id:	CVE-2021-44864	Trust: 3.3
db:	JVNDB	id:	JVNDB-2021-018306	Trust: 0.8
db:	CNNVD	id:	CNNVD-202202-720	Trust: 0.6
db:	VULMON	id:	CVE-2021-44864	Trust: 0.1

sources: VULMON: CVE-2021-44864 // JVNDB: JVNDB-2021-018306 // CNNVD: CNNVD-202202-720 // NVD: CVE-2021-44864

REFERENCES

url:	https://github.com/zhlu32/cve/blob/main/tplink/wr886n/tplink-wr886n-v3-ping-dos.md	Trust: 1.7
url:	https://nvd.nist.gov/vuln/detail/cve-2021-44864	Trust: 1.4
url:	https://github.com/zhlu32/cve-my/blob/main/tplink/wr886n/tplink-wr886n-v3-ping-dos.md	Trust: 0.8
url:	https://cwe.mitre.org/data/definitions/120.html	Trust: 0.1
url:	https://nvd.nist.gov	Trust: 0.1
url:	https://github.com/zhlu32/cve-my	Trust: 0.1

sources: VULMON: CVE-2021-44864 // JVNDB: JVNDB-2021-018306 // CNNVD: CNNVD-202202-720 // NVD: CVE-2021-44864

SOURCES

db:	VULMON	id:	CVE-2021-44864
db:	JVNDB	id:	JVNDB-2021-018306
db:	CNNVD	id:	CNNVD-202202-720
db:	NVD	id:	CVE-2021-44864

LAST UPDATE DATE

2024-11-23T22:20:34.985000+00:00

SOURCES UPDATE DATE

db:	VULMON	id:	CVE-2021-44864	date:	2022-02-11T00:00:00
db:	JVNDB	id:	JVNDB-2021-018306	date:	2023-05-15T01:13:00
db:	CNNVD	id:	CNNVD-202202-720	date:	2022-02-22T00:00:00
db:	NVD	id:	CVE-2021-44864	date:	2024-11-21T06:31:37.907

SOURCES RELEASE DATE

db:	VULMON	id:	CVE-2021-44864	date:	2022-02-08T00:00:00
db:	JVNDB	id:	JVNDB-2021-018306	date:	2023-05-15T00:00:00
db:	CNNVD	id:	CNNVD-202202-720	date:	2022-02-08T00:00:00
db:	NVD	id:	CVE-2021-44864	date:	2022-02-08T15:15:07.597