No exploitation reportedFix available

CVE-2023-49294

Q: Is CVE-2023-49294 actively exploited?

Active exploitation of CVE-2023-49294 has not been confirmed. Its EPSS score was 45.3% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2023-49294?

CVE-2023-49294 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

No exploitation reported by the sources we read.

Published2023-12-14
Fixed in20.5.1 · 18.20.1
WeaknessCWE-22

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Asterisk is an open source private branch exchange and telephony toolkit. In Asterisk prior to versions 18.20.1, 20.5.1, and 21.0.1, as well as certified-asterisk prior to 18.9-cert6, it is possible to read any arbitrary file even when the `live_dangerously` is not enabled. This allows arbitrary files to be read. Asterisk versions 18.20.1, 20.5.1, and 21.0.1, as well as certified-asterisk prior to 18.9-cert6, contain a fix for this issue.

Timeline

dates in UTC

2023-12-1420:15CVE publishedNVD
2026-10-2319:23EPSS crossed 10 %FIRST EPSS

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2023-49294?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-49294?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Digium asterisk

Branch	Affected	Fixed in	Source
20.5	≥ 19.0.0, < 20.5.1	20.5.1	NVD
18.20	< 18.20.1	18.20.1	NVD
21.0	= 21.0.0	no fix published	NVD

Sangoma certified asterisk

Branch	Affected	Fixed in	Source
13.13	= 13.13.0	no fix published	NVD
16.8	= 16.8.0	no fix published	NVD
18.9	= 18.9	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Digium asterisk to 20.5.1 · 18.20.1

Advisories and patches

github.comPatch
github.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CNACVSS 3.14.9read 2026-10-23
NVDCVSS 3.17.5read 2026-10-23
CNAweakness (CWE)CWE-22read 2026-10-23
FIRST EPSSEPSS score45.3 %read 2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Published: 2023-12-14
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2023-49294?

Is CVE-2023-49294 actively exploited?

Active exploitation of CVE-2023-49294 has not been confirmed. Its EPSS score was 45.3% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2023-49294?

CVE-2023-49294 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

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