CVE-2021-37519

🔶 medium

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

CVSS Score

5.5

Medium

EPSS Score

0.0

Exploit Probability

Published Date

2023-02-03

First Seen: 2026-01-05

This CVE is Lower Risk - more severe than 32.5% of all 330,193 vulnerabilities in our database.

#222,836

Below average severity

Severity Percentile

🔍 Exploitation Status

Poc

Proof-of-concept available

⚙️ Automatable

Requires human interaction

💥 Technical Impact

Partial

Limited system impact

SSVC data provided by CISA

Last Modified 2025-03-26

Source NVD 🔗

CVSS Vector 3.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CWE IDs (Weakness Types)

CWE-787

📦 Affected Products 1

Vendor	Product	Status	Affected Versions
memcached	memcached	Affected	v1.6.9

Exploit Issue Tracking Third Party Advisory

Patch Third Party Advisory

CVE ID	Severity	CVSS	EPSS	Summary	Published
CVE-2026-47783	⚠️ high	8.1	0.1	In memcached before 1.6.42, username data for SASL password database authentication has a timing side channel because a ...	2026-05-20
CVE-2026-47784	⚠️ high	8.1	0.1	In memcached before 1.6.42, password data for SASL password database authentication has a timing side channel because me...	2026-05-20
CVE-2023-46852	⚠️ high	7.5	0.1	In Memcached before 1.6.22, a buffer overflow exists when processing multiget requests in proxy mode, if there are many ...	2023-10-27
CVE-2023-46853	⛔ critical	9.8	0.2	In Memcached before 1.6.22, an off-by-one error exists when processing proxy requests in proxy mode, if \n is used inste...	2023-10-27
CVE-2020-22570	⚠️ high	7.5	2.1	Memcached 1.6.0 before 1.6.3 allows remote attackers to cause a denial of service (daemon crash) via a crafted meta comm...	2023-08-22
CVE-2022-48571	⚠️ high	7.5	0.1	memcached 1.6.7 allows a Denial of Service via multi-packet uploads in UDP.	2023-08-22

These CVEs affect the same products