CVE-2021-26827 Memory corruption in n/a
Remote attackers can crash TP-Link WR2041 routers by sending a long SSID parameter, causing a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-26827?
CVE-2021-26827 is a high-severity memory corruption vulnerability in n/a, published on 14 Apr 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Buffer Overflow in TP-Link WR2041 v1 firmware for the TL-WR2041+ router allows remote attackers to cause a Denial-of-Service (DoS) by sending an HTTP request with a very long "ssid" parameter to the "/userRpm/popupSiteSurveyRpm.html" webpage, which crashes the router.
Weakness: CWE-120
Which versions are affected by CVE-2021-26827?
It affects 1 product.
Products include Tp-Link Tl-Wr2041\+ Firmware.
How do I fix CVE-2021-26827?
No fix has been published for CVE-2021-26827 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2021-26827 being exploited?
There is no known exploitation of CVE-2021-26827 in the wild and no public exploit code.
Sources
Also known as GHSA-772c-rxr6-7vm7.