BlackTreeCVE Intelligence
← Back to the CVE catalogue
Full vulnerability report · 2021
CVE-2020-27618High confidence

n/a — Loop with Unreachable Exit Condition ('Infinite Loop')

Unknown · Unknown

Official source article: Siemens SSA-398330 ↗. Check the applicable product and release in the original source.

5.5MediumCVSS 3.1
Recommended action
Patch only the product branches with a verified fix

Medium technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance. Verified remediation exists for at least one product or source, but 6 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityMediumOperational priority:Medium, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • A structured source references public exploit or proof-of-concept material.
  • Exploitation requires an existing local or physical foothold with privileges.
  • EPSS is 0.89% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict local access and enforce least privilege on affected hosts.
  • Increase monitoring for the attack path and post-exploitation behaviour described in the report.

Verification

  1. Confirm that the asset runs Unknown Unknown and falls inside the recorded affected range.
  2. Verify the installed build against the product-specific fixed version after deployment.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: As exposure requiresRemediation target: Within 365 days

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Cross-source reconciliation

Remediation availability differs by product scope

Verified remediation exists for at least one product or source, but 6 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Distribution package intelligence

Release-specific package status

Debian findings are scoped to the named distribution, release and source package. An absent finding does not mean a package is unaffected.

4 package states
Repository candidate not checked

A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.

Distribution releaseSource packageVendor stateFixed versionEvidence
Debian trixietrixie · sourceglibcVendor fix publishedDebian records a fixed source-package version for this release.2.31-5Debian Security Tracker ↗Source updated 5 Oct 2026
Debian bookwormbookworm · sourceglibcVendor fix publishedDebian records a fixed source-package version for this release.2.31-5Debian Security Tracker ↗Source updated 5 Oct 2026
Debian forkyforky · sourceglibcVendor fix publishedDebian records a fixed source-package version for this release.2.31-5Debian Security Tracker ↗Source updated 5 Oct 2026
Debian sidsid · sourceglibcVendor fix publishedDebian records a fixed source-package version for this release.2.31-5Debian Security Tracker ↗Source updated 5 Oct 2026
Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

2 current
SSA-398330 · CSAF 2.0 · revision 18 · interimSiemens ProductCERTSSA-398330: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP >= V3.1.0 and < V3.1.5
5 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)
  • SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0)
  • SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0)
  • SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0)
  • SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0)
Summary
The iconv function in the GNU C Library (aka glibc or libc6) 2.32 and earlier, when processing invalid multi-byte input sequences in IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 encodings, fails to advance the input state, which could lead to an infinite loop in applications, resulting in a denial of service, a different vulnerability from CVE-2016-10228.
Remediation
Update to V3.1.5 or later version
SSA-831302 · CSAF 2.0 · revision 5 · interimSiemens ProductCERTSSA-831302: Vulnerabilities in the BIOS of the SIMATIC S7-1500 TM MFP before V1.3.0
1 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • SIMATIC S7-1500 TM MFP - BIOS
Summary
The iconv function in the GNU C Library (aka glibc or libc6) 2.32 and earlier, when processing invalid multi-byte input sequences in IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 encodings, fails to advance the input state, which could lead to an infinite loop in applications, resulting in a denial of service, a different vulnerability from CVE-2016-10228.
Remediation
Update to V1.3.0 or later version
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2020-20125

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionPatch only the product branches with a verified fix

Medium technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance. Verified remediation exists for at least one product or source, but 6 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
01

What, why and how

The iconv function in the GNU C Library (aka glibc or libc6) 2.32 and earlier, when processing invalid multi-byte input sequences in IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 encodings, fails to advance the input state, which could lead to an infinite loop in applications, resulting in a denial of service, a different vulnerability from CVE-2016-10228.

What

The iconv function in the GNU C Library (aka glibc or libc6) 2.32 and earlier, when processing invalid multi-byte input sequences in IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 encodings, fails to advance the input state, which could lead to an infinite loop in applications, resulting in a denial of service, a different vulnerability from CVE-2016-10228.

Why

A malformed condition prevents a loop from making progress or terminating, allowing resource exhaustion.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may disrupt the affected service.

What

The iconv function in the GNU C Library (aka glibc or libc6) 2.32 and earlier, when processing invalid multi-byte input sequences in IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 encodings, fails to advance the input state, which could lead to an infinite loop in applications, resulting in a denial of service, a different vulnerability from CVE-2016-10228.

Why

A malformed condition prevents a loop from making progress or terminating, allowing resource exhaustion.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may disrupt the affected service.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
Reference recorded

A structured CVE source labels at least one public reference as exploit material. BlackTree has not independently validated that it is safe, reliable or weaponised.

Likely attack path
local access → Loop with Unreachable Exit Condition ('Infinite Loop') → disrupt the affected service
Attack surface
Local
Privileges required
Low: a basic authenticated account is required
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-835 ↗

CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop'). The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVLocalAttack vector: The attacker needs local access to the vulnerable system.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRLowPrivileges required: The attacker needs basic user-level privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CNoneConfidentiality impact: No direct loss is represented by this metric.INoneIntegrity impact: No direct loss is represented by this metric.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
The issue can support a local privilege or sandbox boundary transition; normal system utilities may then be available in the gained context.
Denial of serviceCWE-835Public exploit reference
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

BSI · German · WID-SEC-2023-1432Siemens SIMATIC S7: Mehrere Schwachstellen

Ein Angreifer aus dem angrenzenden Netzwerk oder ein entfernter, anonymer, authentisierter, physischer oder lokaler Angreifer kann mehrere Schwachstellen in Siemens SIMATIC S7 ausnutzen, um beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen offenzulegen, einen Denial-of-Service-Zustand herbeizuführen, seine Privilegien zu erweitern und Daten zu manipulieren.

Official advisory ↗
BSI · German · WID-SEC-2025-0227IBM QRadar SIEM: Mehrere Schwachstellen

Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in IBM QRadar SIEM ausnutzen, um seine Privilegien zu erweitern, Administratorrechte zu erlangen, beliebigen Programmcode auszuführen, Informationen offenzulegen, Dateien zu manipulieren oder Sicherheitsvorkehrungen zu umgehen.

Official advisory ↗
BSI · German · WID-SEC-2022-1172GNU libc: Schwachstelle ermöglicht Denial of Service

Ein lokaler, authentifizierter Angreifer kann eine Schwachstelle in GNU libc ausnutzen, um einen Denial of Service Angriff durchzuführen.

Official advisory ↗
Cyber Security Agency of Singapore · English · CSA-SB-20210303Security Bulletin 03 Mar 2021

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 03 Mar 2021, published on 3 March 2021. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0218Multiples vulnérabilités dans les produits VMware

ord?id=CVE-2020-10543 Référence CVE CVE-2020-10878 https://www.cve.org/CVERecord?id=CVE-2020-10878 Référence CVE CVE-2020-11023 https://www.cve.org/CVERecord?id=CVE-2020-11023 Référence CVE CVE-2020-12723 https://www.cve.org/CVERecord?id=CVE-2020-12723 Référence CVE CVE-2020-12762 https://www.cve.org/CVERecord?id=CVE-2020-12762 Référence CVE CVE-2020-16599 https://www.cve.org/CVERecord?id=CVE-2020-16599 Référence CVE CVE-2020-1752 https://www.cve.org/CVERecord?id=CVE-2020-1752 Référence CVE CVE-2020-19726 https://www.cve.org/CVERecord?id=CVE-2020-19726 Référence CVE CVE-2020-22916 https://www.cve.org/CVERecord?id=CVE-2020-22916 Référence CVE CVE-2020-27618 https://www.cve.org/CVERecord?id=CVE-2020-27618 Référence CVE CVE-2020-29562 https://www.cve.org/CVERecord?id=CVE-2020-29562 Référence CVE CVE-2020-2981 https://www.cve.org/CVERecord?id=CVE-2020-2981 Référence CVE CVE-2021-20197 https://www.cve.org/CVERecord?id=CVE-2021-20197 Référence CVE CVE-2021-20205 https://www.cve.org/CVERecord?id=CVE-2021-20205 Référence CVE CVE-2021-20266 https://www.cve.org/CVERecord?id=CVE-2021-20266 Référence CVE CVE-2021-20284 https://www.cve.org/CVERecord?id=CVE-2021-20284 Référence CVE CVE-2021-22897 https://www.cve.org/CVERecord?id=CVE-2021-22897 Référence CVE CVE-2021-22898 https://www.cve.org/CVERecord?id=CV

Official advisory ↗
CERT-FR · French · CERTFR-2025-AVI-1057Multiples vulnérabilités dans les produits VMware

ord?id=CVE-2019-14844 Référence CVE CVE-2019-17498 https://www.cve.org/CVERecord?id=CVE-2019-17498 Référence CVE CVE-2019-18276 https://www.cve.org/CVERecord?id=CVE-2019-18276 Référence CVE CVE-2019-25013 https://www.cve.org/CVERecord?id=CVE-2019-25013 Référence CVE CVE-2019-25162 https://www.cve.org/CVERecord?id=CVE-2019-25162 Référence CVE CVE-2020-10029 https://www.cve.org/CVERecord?id=CVE-2020-10029 Référence CVE CVE-2020-1752 https://www.cve.org/CVERecord?id=CVE-2020-1752 Référence CVE CVE-2020-22218 https://www.cve.org/CVERecord?id=CVE-2020-22218 Référence CVE CVE-2020-22916 https://www.cve.org/CVERecord?id=CVE-2020-22916 Référence CVE CVE-2020-27618 https://www.cve.org/CVERecord?id=CVE-2020-27618 Référence CVE CVE-2020-28196 https://www.cve.org/CVERecord?id=CVE-2020-28196 Référence CVE CVE-2020-29562 https://www.cve.org/CVERecord?id=CVE-2020-29562 Référence CVE CVE-2021-20227 https://www.cve.org/CVERecord?id=CVE-2021-20227 Référence CVE CVE-2021-20266 https://www.cve.org/CVERecord?id=CVE-2021-20266 Référence CVE CVE-2021-24031 https://www.cve.org/CVERecord?id=CVE-2021-24031 Référence CVE CVE-2021-24032 https://www.cve.org/CVERecord?id=CVE-2021-24032 Référence CVE CVE-2021-27645 https://www.cve.org/CVERecord?id=CVE-2021-27645 Référence CVE CVE-2021-31239 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2025-AVI-0969Multiples vulnérabilités dans les produits VMware

CVERecord?id=CVE-2020-21605 Référence CVE CVE-2020-21606 https://www.cve.org/CVERecord?id=CVE-2020-21606 Référence CVE CVE-2020-22218 https://www.cve.org/CVERecord?id=CVE-2020-22218 Référence CVE CVE-2020-22916 https://www.cve.org/CVERecord?id=CVE-2020-22916 Référence CVE CVE-2020-25663 https://www.cve.org/CVERecord?id=CVE-2020-25663 Référence CVE CVE-2020-2754 https://www.cve.org/CVERecord?id=CVE-2020-2754 Référence CVE CVE-2020-2755 https://www.cve.org/CVERecord?id=CVE-2020-2755 Référence CVE CVE-2020-2756 https://www.cve.org/CVERecord?id=CVE-2020-2756 Référence CVE CVE-2020-2757 https://www.cve.org/CVERecord?id=CVE-2020-2757 Référence CVE CVE-2020-27618 https://www.cve.org/CVERecord?id=CVE-2020-27618 Référence CVE CVE-2020-2773 https://www.cve.org/CVERecord?id=CVE-2020-2773 Référence CVE CVE-2020-27768 https://www.cve.org/CVERecord?id=CVE-2020-27768 Référence CVE CVE-2020-27769 https://www.cve.org/CVERecord?id=CVE-2020-27769 Référence CVE CVE-2020-27776 https://www.cve.org/CVERecord?id=CVE-2020-27776 Référence CVE CVE-2020-2781 https://www.cve.org/CVERecord?id=CVE-2020-2781 Référence CVE CVE-2020-27829 https://www.cve.org/CVERecord?id=CVE-2020-27829 Référence CVE CVE-2020-2800 https://www.cve.org/CVERecord?id=CVE-2020-2800 Référence CVE CVE-2020-2803 https://www.cve.org/CVERecord?id=CVE-202

Official advisory ↗
CERT-FR · French · CERTFR-2025-AVI-0756Multiples vulnérabilités dans les produits VMware

.cve.org/CVERecord?id=CVE-2020-2627 Référence CVE CVE-2020-2660 https://www.cve.org/CVERecord?id=CVE-2020-2660 Référence CVE CVE-2020-2679 https://www.cve.org/CVERecord?id=CVE-2020-2679 Référence CVE CVE-2020-2686 https://www.cve.org/CVERecord?id=CVE-2020-2686 Référence CVE CVE-2020-2694 https://www.cve.org/CVERecord?id=CVE-2020-2694 Référence CVE CVE-2020-2752 https://www.cve.org/CVERecord?id=CVE-2020-2752 Référence CVE CVE-2020-2759 https://www.cve.org/CVERecord?id=CVE-2020-2759 Référence CVE CVE-2020-2760 https://www.cve.org/CVERecord?id=CVE-2020-2760 Référence CVE CVE-2020-2761 https://www.cve.org/CVERecord?id=CVE-2020-2761 Référence CVE CVE-2020-27618 https://www.cve.org/CVERecord?id=CVE-2020-27618 Référence CVE CVE-2020-2763 https://www.cve.org/CVERecord?id=CVE-2020-2763 Référence CVE CVE-2020-2765 https://www.cve.org/CVERecord?id=CVE-2020-2765 Référence CVE CVE-2020-2770 https://www.cve.org/CVERecord?id=CVE-2020-2770 Référence CVE CVE-2020-2774 https://www.cve.org/CVERecord?id=CVE-2020-2774 Référence CVE CVE-2020-2779 https://www.cve.org/CVERecord?id=CVE-2020-2779 Référence CVE CVE-2020-2780 https://www.cve.org/CVERecord?id=CVE-2020-2780 Référence CVE CVE-2020-2790 https://www.cve.org/CVERecord?id=CVE-2020-2790 Référence CVE CVE-2020-2804 https://www.cve.org/CVERecord?id=CVE-2020-2804 R

Official advisory ↗
CERT-FR · French · CERTFR-2023-AVI-1015Multiples vulnérabilités dans les produits Siemens

d?id=CVE-2020-21047 Référence CVE CVE-2020-21913 https://www.cve.org/CVERecord?id=CVE-2020-21913 Référence CVE CVE-2020-22218 https://www.cve.org/CVERecord?id=CVE-2020-22218 Référence CVE CVE-2020-24659 https://www.cve.org/CVERecord?id=CVE-2020-24659 Référence CVE CVE-2020-24977 https://www.cve.org/CVERecord?id=CVE-2020-24977 Référence CVE CVE-2020-25692 https://www.cve.org/CVERecord?id=CVE-2020-25692 Référence CVE CVE-2020-25709 https://www.cve.org/CVERecord?id=CVE-2020-25709 Référence CVE CVE-2020-25710 https://www.cve.org/CVERecord?id=CVE-2020-25710 Référence CVE CVE-2020-26116 https://www.cve.org/CVERecord?id=CVE-2020-26116 Référence CVE CVE-2020-27618 https://www.cve.org/CVERecord?id=CVE-2020-27618 Référence CVE CVE-2020-28196 https://www.cve.org/CVERecord?id=CVE-2020-28196 Référence CVE CVE-2020-29361 https://www.cve.org/CVERecord?id=CVE-2020-29361 Référence CVE CVE-2020-29362 https://www.cve.org/CVERecord?id=CVE-2020-29362 Référence CVE CVE-2020-29363 https://www.cve.org/CVERecord?id=CVE-2020-29363 Référence CVE CVE-2020-29562 https://www.cve.org/CVERecord?id=CVE-2020-29562 Référence CVE CVE-2020-29573 https://www.cve.org/CVERecord?id=CVE-2020-29573 Référence CVE CVE-2020-35525 https://www.cve.org/CVERecord?id=CVE-2020-35525 Référence CVE CVE-2020-35527 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2023-AVI-0453Multiples vulnérabilités dans les produits Siemens

Siemens ssa-975766 du 13 juin 2023 https://cert-portal.siemens.com/productcert/html/ssa-975766.html Référence CVE CVE-2016-10228 https://www.cve.org/CVERecord?id=CVE-2016-10228 Référence CVE CVE-2018-13405 https://www.cve.org/CVERecord?id=CVE-2018-13405 Référence CVE CVE-2018-25032 https://www.cve.org/CVERecord?id=CVE-2018-25032 Référence CVE CVE-2018-4834 https://www.cve.org/CVERecord?id=CVE-2018-4834 Référence CVE CVE-2019-25013 https://www.cve.org/CVERecord?id=CVE-2019-25013 Référence CVE CVE-2020-10029 https://www.cve.org/CVERecord?id=CVE-2020-10029 Référence CVE CVE-2020-1752 https://www.cve.org/CVERecord?id=CVE-2020-1752 Référence CVE CVE-2020-27618 https://www.cve.org/CVERecord?id=CVE-2020-27618 Référence CVE CVE-2020-29562 https://www.cve.org/CVERecord?id=CVE-2020-29562 Référence CVE CVE-2021-20269 https://www.cve.org/CVERecord?id=CVE-2021-20269 Référence CVE CVE-2021-27645 https://www.cve.org/CVERecord?id=CVE-2021-27645 Référence CVE CVE-2021-28831 https://www.cve.org/CVERecord?id=CVE-2021-28831 Référence CVE CVE-2021-3326 https://www.cve.org/CVERecord?id=CVE-2021-3326 Référence CVE CVE-2021-33574 https://www.cve.org/CVERecord?id=CVE-2021-33574 Référence CVE CVE-2021-33655 https://www.cve.org/CVERecord?id=CVE-2021-33655 Référence CVE CVE-2021-35942 https://www.cve.org/CVERecord?id=CV

Official advisory ↗
CERT-FR · French · CERTFR-2023-AVI-0385Multiples vulnérabilités dans les produits VMware Tanzu

De multiples vulnérabilités ont été découvertes dans VMware Tanzu . Elles permettent à un attaquant de provoquer une atteinte à la confidentialité des données, un déni de service à distance et une exécution de code arbitraire à distance.

Official advisory ↗
CERT-FR · French · CERTFR-2021-AVI-791Multiples vulnérabilités dans les produits IBM

d?id=CVE-2020-24330 Référence CVE CVE-2020-24331 https://www.cve.org/CVERecord?id=CVE-2020-24331 Référence CVE CVE-2020-24332 https://www.cve.org/CVERecord?id=CVE-2020-24332 Référence CVE CVE-2020-24977 https://www.cve.org/CVERecord?id=CVE-2020-24977 Référence CVE CVE-2020-25648 https://www.cve.org/CVERecord?id=CVE-2020-25648 Référence CVE CVE-2020-25692 https://www.cve.org/CVERecord?id=CVE-2020-25692 Référence CVE CVE-2020-25712 https://www.cve.org/CVERecord?id=CVE-2020-25712 Référence CVE CVE-2020-26116 https://www.cve.org/CVERecord?id=CVE-2020-26116 Référence CVE CVE-2020-26137 https://www.cve.org/CVERecord?id=CVE-2020-26137 Référence CVE CVE-2020-27618 https://www.cve.org/CVERecord?id=CVE-2020-27618 Référence CVE CVE-2020-27619 https://www.cve.org/CVERecord?id=CVE-2020-27619 Référence CVE CVE-2020-27783 https://www.cve.org/CVERecord?id=CVE-2020-27783 Référence CVE CVE-2020-28196 https://www.cve.org/CVERecord?id=CVE-2020-28196 Référence CVE CVE-2020-28469 https://www.cve.org/CVERecord?id=CVE-2020-28469 Référence CVE CVE-2020-29361 https://www.cve.org/CVERecord?id=CVE-2020-29361 Référence CVE CVE-2020-29362 https://www.cve.org/CVERecord?id=CVE-2020-29362 Référence CVE CVE-2020-29363 https://www.cve.org/CVERecord?id=CVE-2020-29363 Référence CVE CVE-2020-29573 https://www.cve.org/CVERecord?id=

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2020-016228GNU C Library における無限ループに関する脆弱性

GNU C Library (別名 glibc および libc6) には、無限ループに関する脆弱性が存在します。

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Fix availability varies by product
Affected
Fixed
Update to V3.1.5 or later version
Action
Use the product-specific evidence above. Patch only products with a verified fixed release, and keep every affected or under-investigation state without a matching fix in the remediation queue.
Workaround
No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.
04

Evidence and provenance

Published 26 Feb 2021 · Last source change 9 Jun 2025, 15:15 UTC · CWE-835 · Loop with Unreachable Exit Condition ('Infinite Loop')

CVE recordCVE.org · 5.1
CVSS sourceNIST NVD
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2020-20125
Product sourceVendor CSAF · Siemens ProductCERT
Remediation sourceVendor CSAF · Siemens ProductCERT
CWE sourceCISA ADP
NVD statusNVD modified after enrichment

Missing structured fields: affected product. Missing data is not evidence of low risk; review the primary advisory.

Material change intelligence

What changed after publication

View recent updates ↗
  1. Affected versionsThe structured affected or fixed version information changed.
    Before
    n/a · Fixed: An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
    After
    n/a · Fixed: Update to V3.1.5 or later version
    Siemens ProductCERT ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2020-27618 · cve.blacktree.nl