CVE-2021-34798

mediumPriorität · beachten · 53EPSS 0.645 · 99. PerzentilDEEURUUS

grimoire priorityP1 · Urgent

Exploitable?

—

no known exploitation

Likely / severe?

64.5% (99th) EPSS

CVSS 5 · medium

Is it mine?

77 products

Prüfe deine Angriffsfläche

Who says so?

8 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · bewertet 2026-10-22

Malformed requests may cause the server to dereference a NULL pointer. This issue affects Apache HTTP Server 2.4.48 and earlier.

Behebungen

Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.

Ein Hersteller-Fix ist verfügbar.

BehobenSINEC NMSsiemens_psirt
Update to V1.0.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109813788/
BehobenSINEMA Remote Connect Serversiemens_psirt
Update to V3.1 or later version
https://support.industry.siemens.com/cs/ww/en/view/109811169/
BehobenCisco Firepower Extensible Operating System (FXOS)cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenSINEC NMScisa_csaf_ot
Update to V1.0.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109813788/
BehobenSINEMA Remote Connect Servercisa_csaf_ot
Update to V3.1 or later version
https://support.industry.siemens.com/cs/ww/en/view/109811169/
MitigationRUGGEDCOM NMSsiemens_psirt
Restrict access to the affected systems, especially to port 443/tcp, to trusted IP addresses only
MitigationSINEC NMSsiemens_psirt
Restrict access to the affected systems, especially to port 443/tcp, to trusted IP addresses only
MitigationSINEMA Remote Connect Serversiemens_psirt
Restrict access to the affected systems, especially to port 443/tcp, to trusted IP addresses only
MitigationSINEMA Server V14siemens_psirt
Restrict access to the affected systems, especially to port 443/tcp, to trusted IP addresses only
MitigationMELSOFT iQ AppPortal (SW1DND-IQAPL-M)cisa_csaf_ot
Install an antivirus software in the personal computer that runs this product.
MitigationRUGGEDCOM NMScisa_csaf_ot
Restrict access to the affected systems, especially to port 443/tcp, to trusted IP addresses only
MitigationSINEC NMScisa_csaf_ot
Restrict access to the affected systems, especially to port 443/tcp, to trusted IP addresses only
MitigationSINEMA Remote Connect Servercisa_csaf_ot
Restrict access to the affected systems, especially to port 443/tcp, to trusted IP addresses only
MitigationSINEMA Server V14cisa_csaf_ot
Restrict access to the affected systems, especially to port 443/tcp, to trusted IP addresses only
WorkaroundCisco Firepower Extensible Operating System (FXOS)cisco_csaf
Any workarounds will be documented in the product-specific Cisco bugs, which are identified in the Vulnerable Products ["#vp"] section of this advisory.
Kein Fix geplantRUGGEDCOM NMSsiemens_psirt
Currently no fix is planned
Kein Fix geplantSINEMA Server V14siemens_psirt
Currently no fix is planned
Kein Fix geplantRUGGEDCOM NMScisa_csaf_ot
Currently no fix is planned
Kein Fix geplantSINEMA Server V14cisa_csaf_ot
Currently no fix is planned

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

7.5

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · medium–high · 5–7.5

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

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USAusnutzbarkeit 3.9 · Auswirkung 3.6

v3.07.5highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · CISA US

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:Csecondary · Siemens ProductCERT DE

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Hsecondary · CVSS-BT (t0sche)

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · Cisco PSIRT US

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:Csecondary · CISA US

v3.17.5highAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-476USprimärCWE-476USCWE-476USCWE-476US

betroffene Produkte (77)

Betroffene Produkte und Versionsbereiche.

Juniper EX Seriesalle Versionencert_bundDEcpe:/h:juniper:ex:-
Juniper EX Series 4100alle Versionencert_bundDEcpe:/h:juniper:ex:4100
Juniper EX Series 4400alle Versionencert_bundDEcpe:/h:juniper:ex:4400
Juniper EX Series 4600alle Versionencert_bundDEcpe:/h:juniper:ex:ex4600
Juniper EX Series EX9200alle Versionencert_bundDEcpe:/h:juniper:ex:ex9200
Juniper JUNOSalle Versionencert_bundDEcpe:/o:juniper:junos:-
Juniper JUNOS ACX7024alle Versionencert_bundDEcpe:/o:juniper:junos:acx7024
Juniper JUNOS ACX7100-32Calle Versionencert_bundDEcpe:/o:juniper:junos:acx7100-32c
Juniper JUNOS ACX7100-48Lalle Versionencert_bundDEcpe:/o:juniper:junos:acx7100-48l
Juniper JUNOS Evolvedalle Versionencert_bundDEcpe:/o:juniper:junos:evolved
Juniper JUNOS PTX Seriesalle Versionencert_bundDEcpe:/o:juniper:junos:ptx_series
Juniper Junos Space <24.1R2alle Versionencert_bundDE
Juniper MX Seriesalle Versionencert_bundDEcpe:/h:juniper:mx:-
Juniper QFX Series 5000alle Versionencert_bundDEcpe:/h:juniper:qfx:qfx5000
Juniper SRX Seriesalle Versionencert_bundDEcpe:/h:juniper:srx_service_gateways:-
Juniper Junos Space< 24.1R2cert_bundDE
RUGGEDCOM NMSalle Versionencisa_csaf_otUS
SINEC NMSalle Versionencisa_csaf_otUS
SINEMA Remote Connect Serveralle Versionencisa_csaf_otUS
SINEMA Server V14alle Versionencisa_csaf_otUS

20 von 77 angezeigt

Advisories (9)

Hersteller- und Ökosystem-Meldungen dazu.

SSA-685781SSA-685781: Multiple Vulnerabilities in Apache HTTP Server Affecting Siemens Products2022-06-14csaf · siemens_psirtDE
Multiple vulnerabilities were identified in the Apache HTTP Server software. These include NULL Pointer Dereferencing, Out-of-bounds Write and Server-Side Request Forgery related vulnerabilities. Siemens has released updates for several affected products and recommends to update to the latest versions. Siemens recommends specific countermeasures for products where updates are not, or not yet available.
WID-SEC-W-2022-0724Apache HTTP Server: Mehrere SchwachstellenDeutsch2021-09-16csaf · cert_bundDE
Ein entfernter Angreifer kann mehrere Schwachstellen in Apache HTTP Server ausnutzen, um Sicherheitsvorkehrungen zu umgehen, vertrauliche Informationen offenzulegen und einen Denial of Service Zustand herzustellen.
WID-SEC-W-2023-1016Oracle Fusion Middleware: Mehrere SchwachstellenDeutsch2023-04-18csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Oracle Fusion Middleware ausnutzen, um die Vertraulichkeit, Integrität und Verfügbarkeit zu gefährden.
WID-SEC-W-2024-0064Juniper Produkte: Mehrere SchwachstellenDeutsch2024-01-10csaf · cert_bundDE
Ein Angreifer aus dem angrenzenden Netzwerk oder ein entfernter, anonymer, authentisierter, lokaler oder physischer Angreifer kann mehrere Schwachstellen in Juniper JUNOS, Juniper JUNOS Evolved, Juniper SRX Series, Juniper EX Series, Juniper QFX Series, Juniper ACX Series, Juniper PTX Series und Juniper MX Series ausnutzen, um beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen offenzulegen, einen Denial-of-Service-Zustand herbeizuführen und seine Berechtigungen zu erweitern.
WID-SEC-W-2024-1591Juniper JUNOS: Mehrere SchwachstellenDeutsch2024-07-10csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Juniper JUNOS ausnutzen, um einen Denial of Service zu verursachen, Informationen offenzulegen, Privilegien zu erweitern und Sicherheitsmechanismen inklusive zu umgehen.
cisco-sa-apache-httpd-2.4.49-VWL69sWQMultiple Vulnerabilities in Apache HTTP Server Affecting Cisco Products: November 20212021-11-24csaf · cisco_csafUS
On September 16, 2021, the Apache Software Foundation disclosed five vulnerabilities affecting the Apache HTTP Server (httpd) 2.4.48 and earlier releases. For a description of these vulnerabilities, see the Apache HTTP Server 2.4.49 section ["https://httpd.apache.org/security/vulnerabilities_24.html#2.4.49"] of the Apache HTTP Server 2.4 vulnerabilities webpage. This advisory will be updated as additional information becomes available.
ICSA-22-132-02Mitsubishi Electric MELSOFT iQ AppPortal2022-05-12icsa · cisa_csaf_otUS
Successful exploitation of these vulnerabilities could result in a denial-of-service condition, malicious program execution, information disclosure, information tampering, or authentication bypass.
ICSA-22-167-06Siemens Apache HTTP Server2022-06-14icsa · cisa_csaf_otUS
Multiple vulnerabilities were identified in the Apache HTTP Server software. These include NULL Pointer Dereferencing, Out-of-bounds Write and Server-Side Request Forgery related vulnerabilities. Siemens has released updates for several affected products and recommends to update to the latest versions. Siemens recommends specific countermeasures for products where updates are not, or not yet available.
BIT-apache-2021-34798NULL pointer dereference in httpd core2024-03-06vendor · osvUS
Malformed requests may cause the server to dereference a NULL pointer. This issue affects Apache HTTP Server 2.4.48 and earlier.

auch bekannt als (4)

Weitere Namen und Kennungen dieser Entität.

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvd enisa_euvd fstec_bdu cert_bund cisa_csaf_ot siemens_psirt cisco_csaf osv NVD CVE.org MITRE

veröffentlicht 2021-09-16geändert 2026-06-17

verwandt (8,753)

Verwandte Einträge.

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CVE-2010-0425US	high10.0	94.2% (100th)	Exploit	2010-03-05
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CVE-2012-0779US	high9.3	87.1% (100th)	Exploit	2012-05-04
Adobe Flash Player before 10.3.183.19 and 11.x before 11.2.202.235 on Windows, Mac OS X, and Linux; before 11.1.111.9 on Android 2.x and 3.x; and before 11.1.115.8 on Android 4.x a…
CVE-2012-5896US	high10.0	68.7% (99th)	Exploit	2012-11-17
The Annotation Objects Extension ActiveX control in AnnotateX.dll in Quest InTrust 10.4.0.853 and earlier does not properly implement the Add method, which allows remote attackers…
CVE-2003-0772US	high7.5	84.9% (100th)	Exploit	2003-09-22
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+8748 weitere

Referenzen (97)

Externe Belege — Patches, Meldungen, Analysen.

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