CVE-2026-20462CWE-122

In Telephony, there is a possible memory corruption due to a heap buffer overflow

Medium · published July 1, 2026

CVSS v3.1
6.7
EPSS
0%
Percentile
4.7
In the wild
Unconfirmed
What it is

In Telephony, there is a possible memory corruption due to a heap buffer overflow. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS11006447; Issue ID: MSV-7871.

The record
Technical detail
CVSS v3.1
6.7 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00159 · 4.7th percentile
Weakness
CWE-122 · Heap-based Buffer Overflow
Published
2026-07-01T03:14Z
EPSS history
Timeline
  • 01 JUL 03:14Z
    In Telephony, there is a possible memory corruption due to a heap buffer overflow
    cvelistv5