CVE-2026-43951

mediumpriority · track · 0EPSS 0.005 · 46 %ileDEEUJPRUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.55% (46th) EPSS

CVSS 6.5 · medium

Is it mine?

46 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

Out-of-bounds Read vulnerability in Apache HTTP Server with mod_headers and mod_mime and multiple response languages. This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67.

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

v3.16.5mediumAV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:Nsecondary · FSTEC (BDU) RU

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

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:Nsecondaryexploitability 3.9 · impact 2.5

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

ssvc

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

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-125USCWE-125US

affected products (46)

Products and version ranges known to be affected.

Amazon Linux 2all versionscert_bundDEcpe:/o:amazon:linux_2:-
Debian Linuxall versionscert_bundDEcpe:/o:debian:debian_linux:-
F5 F5OSall versionscert_bundDEcpe:/o:f5:f5os:-
Gentoo Linuxall versionscert_bundDEcpe:/o:gentoo:linux:-
IBM Business Automation Workflowall versionscert_bundDEcpe:/a:ibm:business_automation_workflow:-
IBM DevOps Code ClearCase 11.0all versionscert_bundDEcpe:/a:ibm:devops_code_clearcase:11.0
IBM Power Hardware Management Consoleall versionscert_bundDEcpe:/a:ibm:hardware_management_console:-
IBM Power Hardware Management Console V10.3.1050.0-V10.3.1064.1all versionscert_bundDEcpe:/a:ibm:hardware_management_console:v10.3.1050.0_-_v10.3.1064.1
IBM Power Hardware Management Console V11.1.1110.0-V11.1.1112.1all versionscert_bundDEcpe:/a:ibm:hardware_management_console:v11.1.1110.0_-_v11.1.1112.1
IBM Rational ClearCase 10.0.0all versionscert_bundDEcpe:/a:ibm:rational_clearcase:10.0.0
IBM Rational ClearCase 9.1all versionscert_bundDEcpe:/a:ibm:rational_clearcase:9.1
IBM Rational ClearQuestall versionscert_bundDEcpe:/a:ibm:rational_clearquest:-
IBM Tivoli Monitoringall versionscert_bundDEcpe:/a:ibm:tivoli_monitoring:-
Microsoft Azure Linux azl3all versionscert_bundDEcpe:/o:microsoft:azure_linux:azl3
Oracle Linuxall versionscert_bundDEcpe:/o:oracle:linux:-
RESF Rocky Linuxall versionscert_bundDEcpe:/o:resf:rocky_linux:-
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
Red Hat JBoss Core Servicesall versionscert_bundDEcpe:/a:redhat:jboss_core_services:-
Red Hat JBoss Core Services 1all versionscert_bundDEcpe:/a:redhat:jboss_core_services:1
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-

showing 20 of 46

advisories (5)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-1824Apache HTTP Server: Mehrere SchwachstellenDeutsch2026-06-08csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Apache HTTP Server ausnutzen, um beliebigen Programmcode auszuführen, Sicherheitsmaßnahmen zu umgehen, Cross-Site-Scripting-Angriffe durchzuführen, Daten zu verändern und offenzulegen, einen Denial-of-Service-Zustand zu verursachen oder andere nicht näher definierte Angriffe durchzuführen.
WID-SEC-W-2026-2455Oracle Solaris Drittanbieterkomponenten: Mehrere SchwachstellenDeutsch2026-07-21csaf · cert_bundDE
Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in verschiedenen Komponenten von Drittanbietern in Oracle Solaris ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen.
WID-SEC-W-2026-3595IBM QRadar SIEM: Mehrere SchwachstellenDeutsch2026-09-27csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in IBM QRadar SIEM ausnutzen, um beliebigen Programmcode auszuführen, um seine Privilegien zu erhöhen, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, um Dateien zu manipulieren, um einen Cross-Site Scripting Angriff durchzuführen und um Sicherheitsvorkehrungen zu umgehen.
BIT-apache-2026-43951Apache HTTP Server: OOB Read in `merge_response_headers` can cause crash2026-06-10vendor · osvUS
Out-of-bounds Read vulnerability in Apache HTTP Server with mod_headers and mod_mime and multiple response languages. This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67.
JVNDB-2026-026851JVN iPedia advisory JVNDB-2026-0268512026-08-05vendor · jvndbJP

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 osv jvndb NVD CVE.org MITRE

published 2026-06-08modified 2026-09-17

references (5)

External citations — patches, advisories, analysis.

https://httpd.apache.org/security/vulnerabilities_24.htmlPatchcnnvd
https://nvd.nist.gov/vuln/detail/CVE-2026-43951 cnnvd
https://httpd.apache.org/security/vulnerabilities_24.html enisa_euvd
http://www.openwall.com/lists/oss-security/2026/06/08/10Mailing ListThird Party Advisorynvd
https://httpd.apache.org/security/vulnerabilities_24.htmlVendor Advisorynvd

scry

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