CVE-2018-18311

highpriority · track · 43EPSS 0.117 · 96 %ileDEEURUUS

grimoire priorityP1 · Urgent

Exploitable?

—

no known exploitation

Likely / severe?

11.7% (96th) EPSS

CVSS 7.5 · high

Is it mine?

56 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-26

Perl before 5.26.3 and 5.28.x before 5.28.1 has a buffer overflow via a crafted regular expression that triggers invalid write operations.

cvss

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

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.5–9.8

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 10 · impact 6.4

v3.09.8criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.09criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.19.8criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-190USprimaryCWE-787USprimaryCWE-119US

affected products (56)

Products and version ranges known to be affected.

Avaya Aura Application Enablement Servicesall versionscert_bundDEcpe:/a:avaya:aura_application_enablement_services:-
Avaya Aura Communication Managerall versionscert_bundDEcpe:/a:avaya:communication_manager:-
Avaya Aura Session Managerall versionscert_bundDEcpe:/a:avaya:session_manager:-
Avaya Aura System Managerall versionscert_bundDEcpe:/a:avaya:aura_system_manager:-
Avaya Session Border Controllerall versionscert_bundDEcpe:/h:avaya:session_border_controller:-
Debian Linuxall versionscert_bundDEcpe:/o:debian:debian_linux:-
IBM Tivoli Network Managerall versionscert_bundDEcpe:/a:ibm:tivoli_network_manager:ip_edition
McAfee Web Gateway 7.7all versionscert_bundDEcpe:/a:mcafee:web_gateway:7.7
McAfee Web Gateway 7.8all versionscert_bundDEcpe:/a:mcafee:web_gateway:7.8
McAfee Web Gateway 8.0.xall versionscert_bundDEcpe:/a:mcafee:web_gateway:8.0.x
McAfee Web Gateway 8.1.xall versionscert_bundDEcpe:/a:mcafee:web_gateway:8.1.x
Open Source CentOSall versionscert_bundDEcpe:/o:centos:centos:-
Open Source Perlall versionscert_bundDEcpe:/a:perl:perl:-
Oracle Linuxall versionscert_bundDEcpe:/o:oracle:linux:-
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
Ubuntu Linuxall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:-
n/a n/a≤ n/aenisa_euvdEU
ООО «Ред Софт» РЕД ОС≤ 7.2 Муромfstec_bduRU
ООО «РусБИТех-Астра» Astra Linux Special Edition≤ 1.5 «Смоленск»fstec_bduRU

showing 20 of 56

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2025-0211Perl: Mehrere SchwachstellenDeutsch2018-11-29csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Perl ausnutzen, um einen Denial of Service Angriff durchzuführen, Informationen offenzulegen oder Code auszuführen.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund NVD CVE.org MITRE

published 2018-12-07modified 2026-06-17

related (20,398)

Related entries.

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+20393 more

references (110)

External citations — patches, advisories, analysis.

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