9.8
CVE-2026-49841
- EPSS 0.39%
- Veröffentlicht 09.06.2026 16:02:24
- Zuletzt bearbeitet 10.06.2026 15:07:23
- Quelle security-advisories@github.com
- CVE-Watchlists
- Unerledigt
FreeSWITCH: Pre-authentication heap buffer overflow in `mod_verto` HTTP POST body read
FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation that runs on any commodity hardware. Prior to version 1.11.1, the mod_verto HTTP request handler allocates a fixed 2 MiB buffer for a POST application/x-www-form-urlencoded body but accepts Content-Length up to just under 10 MiB. The body-read loop is bounded by Content-Length rather than the buffer size, producing an attacker-controlled heap overflow of up to ~8 MiB -- before the HTTP basic-auth check runs. This issue has been patched in version 1.11.1.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Freeswitch ≫ Freeswitch Version < 1.11.1
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. 
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Login| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 0.39% | 0.311 |
| Quelle | Base Score | Exploit Score | Impact Score | Vector String |
|---|---|---|---|---|
| security-advisories@github.com | 9.8 | 3.9 | 5.9 |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
|
CWE-122 Heap-based Buffer Overflow
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
CWE-131 Incorrect Calculation of Buffer Size
The product does not correctly calculate the size to be used when allocating a buffer, which could lead to a buffer overflow.
https://github.com/signalwire/freeswitch/releases/tag/v1.11.1
https://github.com/signalwire/freeswitch/security/advisories/GHSA-wfrq-qvg2-f88f