CVE-2026-57203

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 29/100
Published: 2026-10-27 Modified: 2026-10-28 First seen: 2026-10-29 Status: active

Attack Surface

Low Complexity Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Local
AC: Low
PR: Low
UI: Passive
S: X
AT: Present
VC: High
VI: High
VA: None

Description

Asterisk is an open source private branch exchange and telephony toolkit. Prior to Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 20.7-cert11, 22.8-cert3, `ast_loggrabber` executes a `Python script` from the world-writable `/tmp` directory. An attacker already authorized to open a shell session on the Asterisk server may place a malicious script there and gain elevated privileges or execute code when an administrator runs `ast_loggrabber` as a user with elevated privileges. This issue is fixed in Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 20.7-cert11, 22.8-cert3.

Weakness Classification (1)

Bug Bounty Relevance

29 / 100
✓ Low complexity

CVSS Score

6.9 / 10.0 v4.0
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — Exploitation Probability

0.14%
Raw Score 0.001450
Percentile 3.8%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00145
2026-10-28
0.00145

Intelligence Sources

mitre ref →
nvd ref →