CVE-2023-49294 | Asterisk Path Traversal vulnerability

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.

Published: 2023-12-14 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-49294 is rated Moderate Risk (57.8/100): CVSS Medium severity, with high exploitation likelihood (EPSS 17.09%, 95th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +6.73% over the last day, indicating growing attacker interest. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2023-49294

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-03-02 10.36% 17.09% +6.73%
2 2026-01-16 21.02% 10.36% -10.67%
3 2026-01-15 — 21.02% —

Full EPSS history (15 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-49294

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.9 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 1.2 3.6 [email protected]
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 3.6 [email protected]

Weakness enumeration for CVE-2023-49294

OS Trackers for CVE-2023-49294

vendor priority summary link
alpine — CVE-2023-49294: 1 source package rows (asterisk); 72 state rows across 7 repos (3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 7, open 65. https://security.alpinelinux.org/vuln/CVE-2023-49294
debian not yet assigned CVE-2023-49294 not yet assigned priority: Debian including 1 source packages (asterisk), 2 status rows across 2 suites (bullseye, sid): resolved 2. https://security-tracker.debian.org/tracker/CVE-2023-49294
gentoo high CVE-2023-49294: 1 GLSA(s) (202412-03), 1 atom(s) (net-misc/asterisk); latest impact high. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2023-49294
ubuntu medium CVE-2023-49294 medium priority: Ubuntu including 1 source packages (asterisk), 12 status rows across 12 suites (bionic, focal, jammy, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): needs-triage 7, ignored 5. https://ubuntu.com/security/CVE-2023-49294

Affected software / configurations for CVE-2023-49294

Vendor Product Version Raw CPE
digium asterisk < 18.20.1 cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*
digium asterisk >= 19.0.0, < 20.5.1 cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*
digium asterisk 21.0.0 cpe:2.3:a:digium:asterisk:21.0.0:*:*:*:*:*:*:*
sangoma certified_asterisk 13.13.0 cpe:2.3:a:sangoma:certified_asterisk:13.13.0:*:*:*:*:*:*:*
sangoma certified_asterisk 13.13.0 cpe:2.3:a:sangoma:certified_asterisk:13.13.0:cert1:*:*:*:*:*:*
sangoma certified_asterisk 13.13.0 cpe:2.3:a:sangoma:certified_asterisk:13.13.0:cert1-rc1:*:*:*:*:*:*
sangoma certified_asterisk 13.13.0 cpe:2.3:a:sangoma:certified_asterisk:13.13.0:cert1-rc2:*:*:*:*:*:*
sangoma certified_asterisk 13.13.0 cpe:2.3:a:sangoma:certified_asterisk:13.13.0:cert1-rc3:*:*:*:*:*:*
sangoma certified_asterisk 13.13.0 cpe:2.3:a:sangoma:certified_asterisk:13.13.0:cert1-rc4:*:*:*:*:*:*
sangoma certified_asterisk 13.13.0 cpe:2.3:a:sangoma:certified_asterisk:13.13.0:cert2:*:*:*:*:*:*
sangoma certified_asterisk 13.13.0 cpe:2.3:a:sangoma:certified_asterisk:13.13.0:cert3:*:*:*:*:*:*
sangoma certified_asterisk 13.13.0 cpe:2.3:a:sangoma:certified_asterisk:13.13.0:rc1:*:*:*:*:*:*
sangoma certified_asterisk 13.13.0 cpe:2.3:a:sangoma:certified_asterisk:13.13.0:rc2:*:*:*:*:*:*
sangoma certified_asterisk 16.8.0 cpe:2.3:a:sangoma:certified_asterisk:16.8.0:-:*:*:*:*:*:*
sangoma certified_asterisk 16.8.0 cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert1:*:*:*:*:*:*
sangoma certified_asterisk 16.8.0 cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert10:*:*:*:*:*:*
sangoma certified_asterisk 16.8.0 cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert11:*:*:*:*:*:*
sangoma certified_asterisk 16.8.0 cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert12:*:*:*:*:*:*
sangoma certified_asterisk 16.8.0 cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert2:*:*:*:*:*:*
sangoma certified_asterisk 16.8.0 cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert3:*:*:*:*:*:*
sangoma certified_asterisk 16.8.0 cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert4:*:*:*:*:*:*
sangoma certified_asterisk 16.8.0 cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert5:*:*:*:*:*:*
sangoma certified_asterisk 16.8.0 cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert6:*:*:*:*:*:*
sangoma certified_asterisk 16.8.0 cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert7:*:*:*:*:*:*
sangoma certified_asterisk 16.8.0 cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert8:*:*:*:*:*:*
sangoma certified_asterisk 16.8.0 cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert9:*:*:*:*:*:*
sangoma certified_asterisk 18.9 cpe:2.3:a:sangoma:certified_asterisk:18.9:cert1:*:*:*:*:*:*
sangoma certified_asterisk 18.9 cpe:2.3:a:sangoma:certified_asterisk:18.9:cert2:*:*:*:*:*:*
sangoma certified_asterisk 18.9 cpe:2.3:a:sangoma:certified_asterisk:18.9:cert3:*:*:*:*:*:*
sangoma certified_asterisk 18.9 cpe:2.3:a:sangoma:certified_asterisk:18.9:cert4:*:*:*:*:*:*
sangoma certified_asterisk 18.9 cpe:2.3:a:sangoma:certified_asterisk:18.9:cert5:*:*:*:*:*:*

References for CVE-2023-49294

cvelogic Threat Intelligence