Staging Environment: Content and features may be unstable or change without notice.
Search for vulnerabilities
Vulnerability details: VCID-63fe-saga-13ct
Vulnerability ID VCID-63fe-saga-13ct
Aliases CVE-2025-54995
Summary Asterisk is an open source private branch exchange and telephony toolkit. Prior to versions 18.26.4 and 18.9-cert17, RTP UDP ports and internal resources can leak due to a lack of session termination. This could result in leaks and resource exhaustion. This issue has been patched in versions 18.26.4 and 18.9-cert17.
Status Published
Exploitability 0.5
Weighted Severity 5.9
Risk 3.0
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-400 Uncontrolled Resource Consumption
CWE-1286 Improper Validation of Syntactic Correctness of Input
System Score Found at
epss 0.00991 https://api.first.org/data/v1/epss?cve=CVE-2025-54995
epss 0.00991 https://api.first.org/data/v1/epss?cve=CVE-2025-54995
epss 0.00991 https://api.first.org/data/v1/epss?cve=CVE-2025-54995
epss 0.00991 https://api.first.org/data/v1/epss?cve=CVE-2025-54995
epss 0.00991 https://api.first.org/data/v1/epss?cve=CVE-2025-54995
epss 0.00991 https://api.first.org/data/v1/epss?cve=CVE-2025-54995
epss 0.00991 https://api.first.org/data/v1/epss?cve=CVE-2025-54995
epss 0.01038 https://api.first.org/data/v1/epss?cve=CVE-2025-54995
cvssv3.1 6.5 https://github.com/asterisk/asterisk/commit/0278f5bde14565c6838a6ec39bc21aee0cde56a9
ssvc Track https://github.com/asterisk/asterisk/commit/0278f5bde14565c6838a6ec39bc21aee0cde56a9
cvssv3.1 6.5 https://github.com/asterisk/asterisk/commit/eafcd7a451dcd007dddf324ac37dd55a4808338d
ssvc Track https://github.com/asterisk/asterisk/commit/eafcd7a451dcd007dddf324ac37dd55a4808338d
cvssv3.1 6.5 https://github.com/asterisk/asterisk/pull/1405
ssvc Track https://github.com/asterisk/asterisk/pull/1405
cvssv3.1 6.5 https://github.com/asterisk/asterisk/pull/1406
ssvc Track https://github.com/asterisk/asterisk/pull/1406
cvssv3.1 6.5 https://github.com/asterisk/asterisk/security/advisories/GHSA-557q-795j-wfx2
ssvc Track https://github.com/asterisk/asterisk/security/advisories/GHSA-557q-795j-wfx2
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2025-54995
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-54995
0278f5bde14565c6838a6ec39bc21aee0cde56a9 https://github.com/asterisk/asterisk/commit/0278f5bde14565c6838a6ec39bc21aee0cde56a9
1405 https://github.com/asterisk/asterisk/pull/1405
1406 https://github.com/asterisk/asterisk/pull/1406
eafcd7a451dcd007dddf324ac37dd55a4808338d https://github.com/asterisk/asterisk/commit/eafcd7a451dcd007dddf324ac37dd55a4808338d
GHSA-557q-795j-wfx2 https://github.com/asterisk/asterisk/security/advisories/GHSA-557q-795j-wfx2
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/asterisk/asterisk/commit/0278f5bde14565c6838a6ec39bc21aee0cde56a9
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2025-08-28T18:53:35Z/ Found at https://github.com/asterisk/asterisk/commit/0278f5bde14565c6838a6ec39bc21aee0cde56a9
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/asterisk/asterisk/commit/eafcd7a451dcd007dddf324ac37dd55a4808338d
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2025-08-28T18:53:35Z/ Found at https://github.com/asterisk/asterisk/commit/eafcd7a451dcd007dddf324ac37dd55a4808338d
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/asterisk/asterisk/pull/1405
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2025-08-28T18:53:35Z/ Found at https://github.com/asterisk/asterisk/pull/1405
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/asterisk/asterisk/pull/1406
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2025-08-28T18:53:35Z/ Found at https://github.com/asterisk/asterisk/pull/1406
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/asterisk/asterisk/security/advisories/GHSA-557q-795j-wfx2
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2025-08-28T18:53:35Z/ Found at https://github.com/asterisk/asterisk/security/advisories/GHSA-557q-795j-wfx2
Exploit Prediction Scoring System (EPSS)
Percentile 0.76862
EPSS Score 0.00991
Published At April 4, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T16:39:03.004975+00:00 Debian Oval Importer Import https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.0.0