Vulnerability · Published Dec 22, 2021 · Assigned by talos
CVE-2021-21887
Critical 9.1
In plain English
A critical-severity stack buffer overflow in Lantronix. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 3.1% (higher than 88% of all known vulnerabilities).
Severity (CVSS 3.0)9.1Critical
Exploit odds (30 days)3.1%top 12.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
A stack-based buffer overflow vulnerability exists in the Web Manager SslGenerateCSR functionality of Lantronix PremierWave 2050 8.9.0.0R4 (in QEMU). A specially crafted HTTP request can lead to remote code execution. An attacker can make an authenticated HTTP request to trigger this vulnerability.
Affected products (as reported)
Weakness: CWE-121 · Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
References
- https://talosintelligence.com/vulnerability_reports/TALOS-2021-1331 x_refsource_MISC