CVE-2021-44864 json
TP-Link WR886N 3.0 1.0.1 Build 150127 Rel.34123n is vulnerable to Buffer Overflow.
published 2022-02-08 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-31667
- cvss
- 6.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 10.2%
- EPSS 10.2% chance of exploitation in 30 days, percentile 95%
- public exploits
- 0
- none known
Summary
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.
Exploit prediction
10.19% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/zhlu32/cve/blob/main/tplink/wr886n/Tplink-wr886n-V3-Ping-DOS.md referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 4.0 | AV:N/AC:L/Au:S/C:N/I:N/A:P |
Classification
- Weakness
-
- CWE-120 Buffer Copy without Checking Size of Input
References
-
github.com
/zhlu32/cve/blob/main/tplink/wr886n/Tplink-wr886n-V3-Ping-DOS.md
exploit, third-party-advisory
Sources
- CVE List CVE-2021-44864
- NVD CVE-2021-44864
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