CVE-2020-25756
CRITICALCVSS 9.8/10EPSS 1.62%
Last modified
CVE-2020-25756 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. A buffer overflow vulnerability exists in the mg_get_http_header function in Cesanta Mongoose 6.18 due to a lack of bounds checking. A crafted HTTP header can exploit this bug. EPSS estimates a 1.62% chance of exploitation in the next 30 days.
Description
A buffer overflow vulnerability exists in the mg_get_http_header function in Cesanta Mongoose 6.18 due to a lack of bounds checking. A crafted HTTP header can exploit this bug. NOTE: a committer has stated "this will not happen in practice.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Cesanta | Mongoose | 6.18 |
References
- https://github.com/cesanta/mongoose/issues/1135Issue Tracking, Patch, Third Party Advisory
- https://github.com/cesanta/mongoose/issues/1135Issue Tracking, Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-25756?
A buffer overflow vulnerability exists in the mg_get_http_header function in Cesanta Mongoose 6.18 due to a lack of bounds checking. A crafted HTTP header can exploit this bug. NOTE: a committer has stated "this will not happen in practice.
How severe is CVE-2020-25756?
CVE-2020-25756 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.62% probability of exploitation in the next 30 days.
How do I fix CVE-2020-25756?
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.
Are you affected by CVE-2020-25756?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST