CVE-2021-36221

mediumpriority · track · 25EPSS 0.031 · 88 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

3.11% (88th) EPSS

CVSS 4.3 · medium

Is it mine?

20 products

Check your exposure

Who says so?

7 sources

cnnvd · enisa_euvd · osv · cert_bund

EPSS · scored 2026-10-27

Go before 1.15.15 and 1.16.x before 1.16.7 has a race condition that can lead to a net/http/httputil ReverseProxy panic upon an ErrAbortHandler abort.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedSCALANCE LPE9403siemens_psirt
Update to V2.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109811123/
FixedSCALANCE LPE9403cisa_csaf_ot
Update to V2.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109811123/

cvss

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

5.9

010

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

v2.04.3mediumAV:N/AC:M/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 8.6 · impact 2.9

v3.15.9mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 2.2 · impact 3.6

v3.15.9mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:Csecondary · CISA US

v3.15.9mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:Csecondary · Siemens ProductCERT DE

v3.15.4mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-362USprimaryCWE-362USCWE-362US

affected products (20)

Products and version ranges known to be affected.

Dell ECS <3.8.1.0all versionscert_bundDE
Dell PowerEdgeall versionscert_bundDEcpe:/h:dell:poweredge:-
IBM InfoSphere Information Serverall versionscert_bundDEcpe:/a:ibm:infosphere_information_server:-
Dell ECS< 3.8.1.0cert_bundDE
SCALANCE LPE9403all versionscisa_csaf_otUS
Siemens SCALANCE LPE9403< V2.0cisa_csaf_otUS
n/a n/a≤ n/aenisa_euvdEU
debian debian linux= 9.0nvdUScpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*
fedoraproject fedora= 33nvdUScpe:2.3:o:fedoraproject:fedora:*:*:*:*:*:*:*:*
fedoraproject fedora= 34nvdUScpe:2.3:o:fedoraproject:fedora:*:*:*:*:*:*:*:*
fedoraproject fedora= 35nvdUScpe:2.3:o:fedoraproject:fedora:*:*:*:*:*:*:*:*
golang go< 1.15.15nvdUScpe:2.3:a:golang:go:*:*:*:*:*:*:*:*
golang go1.16.0 → 1.16.7nvdUScpe:2.3:a:golang:go:*:*:*:*:*:*:*:*
oracle timesten in-memory database< 21.1.1.1.0nvdUScpe:2.3:a:oracle:timesten_in-memory_database:*:*:*:*:*:*:*:*
siemens scalance lpe9403 firmware< 2.0nvdUScpe:2.3:o:siemens:scalance_lpe9403_firmware:*:*:*:*:*:*:*:*
Bitnami golang< 1.15.15osvUSpkg:bitnami/golang
Bitnami golang1.16.0 → 1.16.7osvUSpkg:bitnami/golang
Go stdlib< 1.15.15osvUSpkg:golang/stdlib
Go stdlib1.16.0-0 → 1.16.7osvUSpkg:golang/stdlib
Siemens SCALANCE LPE9403< V2.0siemens_psirtDE

advisories (8)

Vendor and ecosystem advisories describing this.

SSA-222547SSA-222547: Third-Party Component Vulnerabilities in SCALANCE LPE9403 before V2.02022-06-14csaf · siemens_psirtDE
Multiple vulnerabilities in the third-party components CivetWeb, Docker, Linux Kernel and systemd could allow an attacker to impact SCALANCE LPE9403 confidentiality, integrity and availability. Siemens has released an update for the SCALANCE LPE9403 and recommends to update to the latest version.
WID-SEC-W-2022-0970Red Hat OpenShift: Mehrere SchwachstellenDeutsch2022-04-07csaf · cert_bundDE
Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Red Hat OpenShift ausnutzen, um einen Denial-of-Service-Zustand zu verursachen und Sicherheitsmaßnahmen zu umgehen.
WID-SEC-W-2022-1335Xerox FreeFlow Print Server: Mehrere SchwachstellenDeutsch2022-09-07csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Xerox FreeFlow Print Server ausnutzen, um die Vertraulichkeit, Verfügbarkeit und Integrität des Systems zu gefährden.
WID-SEC-W-2023-2229Splunk Splunk Enterprise: Mehrere SchwachstellenDeutsch2023-08-30csaf · cert_bundDE
Ein entfernter, authentifizierter Angreifer kann mehrere Schwachstellen in Splunk Splunk Enterprise ausnutzen, um beliebigen Code auszuführen, einen 'Denial of Service'-Zustand zu verursachen, seine Privilegien zu erweitern und weitere, nicht spezifizierte Auswirkungen zu verursachen.
WID-SEC-W-2024-0794Dell ECS: Mehrere SchwachstellenDeutsch2024-04-04csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Dell ECS ausnutzen, um seine Privilegien zu erweitern, beliebigen Programmcode mit Administratorrechten auszuführen, Informationen offenzulegen, Dateien zu manipulieren, einen Cross-Site-Scripting-Angriff durchzuführen, Sicherheitsvorkehrungen zu umgehen oder einen Denial of Service Zustand herbeizuführen.
ICSA-22-167-09Siemens SCALANCE LPE9403 Third-Party Vulnerabilities2022-06-14icsa · cisa_csaf_otUS
Multiple vulnerabilities in the third-party components CivetWeb, Docker, Linux Kernel and systemd could allow an attacker to impact SCALANCE LPE9403 confidentiality, integrity and availability. Siemens has released an update for the SCALANCE LPE9403 and recommends to update to the latest version.
BIT-golang-2021-362212024-03-06vendor · osvUS
Go before 1.15.15 and 1.16.x before 1.16.7 has a race condition that can lead to a net/http/httputil ReverseProxy panic upon an ErrAbortHandler abort.
GO-2021-0245Panic in ReverseProxy in net/http/httputil2022-02-17vendor · osvUS
ReverseProxy can panic after encountering a problem copying a proxied response body.

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd osv cert_bund cisa_csaf_ot nvd siemens_psirt NVD CVE.org MITRE

published 2021-08-08modified 2026-06-17

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references (74)

External citations — patches, advisories, analysis.

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