CVE-2021-37519

memcached: Buffer Overflow vulnerability in authfile.c

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Published Feb 3, 2023 CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed

Description

Buffer Overflow vulnerability in authfile.c memcached 1.6.9 allows attackers to cause a denial of service via crafted authenticattion file.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

cpe:2.3:a:memcached:memcached:1.6.9:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2021-24081	Buffer Overflow vulnerability in authfile.c memcached 1.6.9 allows attackers to cause a denial of service via crafted authenticattion file.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.363% probability within 30 days)

Exploitation poc

Automatable no

Technical Impact partial

References

Link	Providers
https://github.com/memcached/memcached/issues/805
https://github.com/memcached/memcached/pull/806/commits/264722ae4e248b453be00e97197dadc685b60fd0
https://nvd.nist.gov/vuln/detail/CVE-2021-37519
https://www.cve.org/CVERecord?id=CVE-2021-37519

History

Mar 26, 2025 7:15 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Subscriptions

Memcached Memcached

Weaknesses

Sources

CVE record Updated: Mar 26, 2025, 6:16 PM

Status: PUBLISHED
Assigner: mitre
Published: Feb 3, 2023, 12:00 AM
Updated: Mar 26, 2025, 6:16 PM
Reserved: Jul 26, 2021, 12:00 AM

View source JSON

Vulnrichment Updated: Aug 4, 2024, 1:22 AM

Updated: Aug 4, 2024, 1:22 AM

NVD Updated: Jun 17, 2026, 4:00 AM

Status: Modified
Published: Feb 3, 2023, 6:15 PM
Modified: Jun 17, 2026, 4:00 AM

View source JSON

Red Hat Updated: Feb 3, 2023, 12:00 AM

Severity: Low
Public date: Feb 3, 2023, 12:00 AM

View source Bugzilla JSON

OpenCVE enrichment No data

No data.

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