CVE-2018-7284

mediumpriority · attend · 63EPSS 0.662 · 99 %ileexploit · functionalDEEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

2 exploits · functional

Likely / severe?

66.2% (99th) EPSS

CVSS 5 · medium

Is it mine?

17 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-27

A Buffer Overflow issue was discovered in Asterisk through 13.19.1, 14.x through 14.7.5, and 15.x through 15.2.1, and Certified Asterisk through 13.18-cert2. When processing a SUBSCRIBE request, the res_pjsip_pubsub module stores the accepted formats present in the Accept headers of the request. This code did not limit the number of headers it processed, despite having a fixed limit of 32. If more than 32 Accept headers were present, the code would write outside of its memory and cause a crash.

cvss

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

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5

v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.07.5highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.07.5highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Hsecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-119USprimary

exploits (2)

Public proof-of-concept and weaponised exploit code.

EDB-44184Asterisk chan_pjsip 15.2.0 - 'SUBSCRIBE' Stack Corruptionfunctional · exploit_db
Rodrigo-D/astDoSTool to exploit CVE-2018-7284 and CVE-2018-19278PoC · poc_in_github

affected products (17)

Products and version ranges known to be affected.

Debian Linuxall versionscert_bundDEcpe:/o:debian:debian_linux:-
Digium Certified Asterisk <13.18-cert3all versionscert_bundDE
Open Source Asterisk <13.19.2all versionscert_bundDE
Open Source Asterisk <14.7.6all versionscert_bundDE
Open Source Asterisk <15.2.2all versionscert_bundDE
Ubuntu Linuxall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:-
Digium Certified Asterisk< 13.18-cert3cert_bundDE
Open Source Asterisk< 13.19.2cert_bundDE
Open Source Asterisk< 14.7.6cert_bundDE
Open Source Asterisk< 15.2.2cert_bundDE
n/a n/a≤ n/aenisa_euvdEU
debian debian linux= 9.0nvdUScpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*
digium asterisk≤ 13.19.1nvdUScpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*
digium asterisk14.0.0 → 14.7.5nvdUScpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*
digium asterisk15.0.0 → 15.2.1nvdUScpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*
digium certified asterisk≤ 13.18nvdUScpe:2.3:a:digium:certified_asterisk:*:*:*:*:*:*:*:*
digium certified asterisk= 13.18nvdUScpe:2.3:a:digium:certified_asterisk:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-0838Asterisk: Schwachstelle ermöglicht Denial of ServiceDeutsch2018-02-21csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Asterisk ausnutzen, um einen Denial of Service Angriff durchzuführen.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund nvd NVD CVE.org MITRE

published 2018-02-22modified 2026-06-17

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+21038 more

references (17)

External citations — patches, advisories, analysis.

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