CVE-2025-49832

mediumpriority · track · 26EPSS 0.005 · 42 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.49% (42nd) EPSS

CVSS 6.5 · medium

Is it mine?

26 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · cert_bund

EPSS · scored 2026-10-27

Asterisk is an open source private branch exchange and telephony toolkit. In versions up to and including 18.26.2, between 20.00.0 and 20.15.0, 20.7-cert6, 21.00.0, 22.00.0 through 22.5.0, there is a remote DoS and possible RCE condition in `asterisk/res/res_stir_shaken /verification.c` that can be exploited when an attacker can set an arbitrary Identity header, or STIR/SHAKEN is enabled, with verification set in the SIP profile associated with the endpoint to be attacked. This is fixed in versions 18.26.3, 20.7-cert6, 20.15.1, 21.10.1 and 22.5.1.

cvss

Technical severity, 0–10. One row per scoring source.

6.5

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 3.6

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hsecondary · ENISA EU

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hsecondary · security-advisories@github.comexploitability 2.8 · impact 3.6

v3.16mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: poc · Automatable: no · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-476US

affected products (26)

Products and version ranges known to be affected.

Debian Linuxall versionscert_bundDEcpe:/o:debian:debian_linux:-
Fedora Linuxall versionscert_bundDEcpe:/o:fedoraproject:fedora:-
Gentoo Linuxall versionscert_bundDEcpe:/o:gentoo:linux:-
Open Source Asterisk <18.26.3all versionscert_bundDE
Open Source Asterisk <18.9-cert16all versionscert_bundDE
Open Source Asterisk <20.15.1all versionscert_bundDE
Open Source Asterisk <20.7-cert7all versionscert_bundDE
Open Source Asterisk <21.10.1all versionscert_bundDE
Open Source Asterisk <22.5.1all versionscert_bundDE
Open Source Asterisk< 18.26.3cert_bundDE
Open Source Asterisk< 18.9-cert16cert_bundDE
Open Source Asterisk< 20.15.1cert_bundDE
Open Source Asterisk< 20.7-cert7cert_bundDE
Open Source Asterisk< 21.10.1cert_bundDE
Open Source Asterisk< 22.5.1cert_bundDE
asterisk asterisk≤ < 18.26.3enisa_euvdEU
asterisk asterisk20.00.0, → 20.15.1enisa_euvdEU
asterisk asterisk20.7-cert6, → 20.7-cert7enisa_euvdEU
asterisk asterisk21.00.0, → 21.10.1enisa_euvdEU
asterisk asterisk22.00.0, → 22.5.1enisa_euvdEU

showing 20 of 26

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2025-1697Asterisk: Mehrere SchwachstellenDeutsch2025-07-31csaf · cert_bundDE
Ein lokaler Angreifer kann mehrere Schwachstellen in Asterisk ausnutzen, um seine Privilegien zu erhöhen, oder einen Denial-of-Service auszulösen.

also known as (2)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund NVD CVE.org MITRE

published 2025-08-01modified 2026-06-17

references (4)

External citations — patches, advisories, analysis.

scry

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