CVE-2021-42887
CRITICALCVSS 9.8/10EPSS 42.85%
Last modified
CVE-2021-42887 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. In TOTOLINK EX1200T V4.1.2cu.5215, an attacker can bypass login by sending a specific request through formLoginAuth.htm.. EPSS estimates a 42.85% chance of exploitation in the next 30 days.
Description
In TOTOLINK EX1200T V4.1.2cu.5215, an attacker can bypass login by sending a specific request through formLoginAuth.htm.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Totolink | Ex1200t Firmware | 4.1.2cu.5215 |
References
- https://github.com/p1Kk/vuln/blob/main/totolink_ex1200t_login_bypass.mdExploit, Third Party Advisory
- https://github.com/p1Kk/vuln/blob/main/totolink_ex1200t_login_bypass.mdExploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-42887?
In TOTOLINK EX1200T V4.1.2cu.5215, an attacker can bypass login by sending a specific request through formLoginAuth.htm.
How severe is CVE-2021-42887?
CVE-2021-42887 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 42.85% probability of exploitation in the next 30 days.
How do I fix CVE-2021-42887?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2021
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- CVE-2021-42877TOTOLINK EX1200T V4.1.2cu.5215 contains a denial of service …7.5
- CVE-2021-4288A vulnerability was found in OpenMRS openmrs-module-referenc…6.1
- CVE-2021-42884TOTOLINK EX1200T V4.1.2cu.5215 contains a remote command inj…9.8
- CVE-2021-42885TOTOLINK EX1200T V4.1.2cu.5215 contains a remote command inj…9.8
- CVE-2021-42886TOTOLINK EX1200T V4.1.2cu.5215 contains an information discl…7.5
- CVE-2021-42888TOTOLINK EX1200T V4.1.2cu.5215 contains a remote command inj…9.8
- CVE-2021-42889In TOTOLINK EX1200T V4.1.2cu.5215, an attacker can obtain se…7.5
- CVE-2021-4289A vulnerability classified as problematic was found in OpenM…6.1
- CVE-2021-42890TOTOLINK EX1200T V4.1.2cu.5215 contains a remote command inj…9.8
- CVE-2021-42891In TOTOLINK EX1200T V4.1.2cu.5215, an attacker can obtain se…7.5
- CVE-2021-42892In TOTOLINK EX1200T V4.1.2cu.5215, an attacker can start tel…4.3
Are you affected by CVE-2021-42887?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST