CVE-2022-48571

memcached 1.6.7 allows a Denial of Service via multi-packet uploads in UDP.

7.5 HighFix available

memcached 1.6.7 allows a Denial of Service via multi-packet uploads in UDP.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: High

Exploit likelihood

1.09%Up 1.1 points since Aug 23, 2023

What each source reports

NVD Score used 7.5

memcached 1.6.7 allows a Denial of Service via multi-packet uploads in UDP.

Record: CVE-2022-48571
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-400
Updated: 2026-11-02

CVE List No score

memcached 1.6.7 allows a Denial of Service via multi-packet uploads in UDP.

Record: CVE-2022-48571
Updated: 2026-11-02

EUVDEUVD-2022-51267 No score

memcached 1.6.7 allows a Denial of Service via multi-packet uploads in UDP.

Record: EUVD-2022-51267
Updated: 2026-11-03

GitHub AdvisoriesGHSA-x6px-h85m-3m6v 7.5

memcached 1.6.7 allows a Denial of Service via multi-packet uploads in UDP.

memcached 1.6.7 allows a Denial of Service via multi-packet uploads in UDP.

Record: GHSA-x6px-h85m-3m6v
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-400
Updated: 2026-11-02

OSVUBUNTU-CVE-2022-48571 7.5

memcached 1.6.7 allows a Denial of Service via multi-packet uploads in UDP.

Record: UBUNTU-CVE-2022-48571
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVBIT-memcached-2022-48571 No score

memcached 1.6.7 allows a Denial of Service via multi-packet uploads in UDP.

Record: BIT-memcached-2022-48571
Updated: 2026-11-02

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OSVCLSA-2023-1696351801 No score

Fix CVE(s): CVE-2022-48571

SECURITY UPDATE: denial of service
- debian/patches/CVE-2022-48571.patch: fix the crash when receiving multi-packet uploads in UDP
- CVE-2022-48571

Record: CLSA-2023-1696351801
Updated: 2026-11-02

OSVCLSA-2023-1696352041 No score

Fix CVE(s): CVE-2022-48571

SECURITY UPDATE: denial of service
- debian/patches/CVE-2022-48571.patch: fix the crash when receiving multi-packet uploads in UDP
- CVE-2022-48571

Record: CLSA-2023-1696352041
Updated: 2026-11-02

OSV No score

memcached 1.6.7 allows a Denial of Service via multi-packet uploads in UDP.

Record: CVE-2022-48571
Updated: 2026-11-02

OSVDEBIAN-CVE-2022-48571 No score

memcached 1.6.7 allows a Denial of Service via multi-packet uploads in UDP.

Record: DEBIAN-CVE-2022-48571
Updated: 2026-11-03

OSVUSN-6382-1 No score

memcached vulnerability

It was discovered that Memcached incorrectly handled certain multi-packet uploads in UDP. An attacker could possibly use this issue to cause a denial of service.

Record: USN-6382-1
Updated: 2026-11-02

Affected products

memcached

Affected packages

Affected packages
Package	Affected	Fixed
`memcached` Bitnami	before 1.6.8	1.6.8
`memcached` TuxCare:Ubuntu:16.04	before 1.4.25-2ubuntu1.5+tuxcare.els1	1.4.25-2ubuntu1.5+tuxcare.els1
`memcached` TuxCare:Ubuntu:18.04	before 1.5.6-0ubuntu1.2+tuxcare.els1	1.5.6-0ubuntu1.2+tuxcare.els1
`memcached` Debian:12	before 1.6.8+dfsg-1	1.6.8+dfsg-1
`memcached` Debian:13	before 1.6.8+dfsg-1	1.6.8+dfsg-1
`memcached` Debian:14	before 1.6.8+dfsg-1	1.6.8+dfsg-1
`memcached` Debian:10	before 1.5.6-1.1+deb10u1, plus listed versions 1.5.6-1.1	1.5.6-1.1+deb10u1
`memcached` Ubuntu:Pro:16.04:LTS	before 1.4.25-2ubuntu1.5+esm1, plus listed versions 1.4.24-2ubuntu11.4.25-1ubuntu21.4.25-2ubuntu11.4.25-2ubuntu1.21.4.25-2ubuntu1.31.4.25-2ubuntu1.41.4.25-2ubuntu1.5	1.4.25-2ubuntu1.5+esm1
`memcached` Ubuntu:Pro:18.04:LTS	before 1.5.6-0ubuntu1.2+esm1, plus listed versions 1.4.33-1ubuntu31.5.4-1ubuntu21.5.4-1ubuntu31.5.6-0ubuntu11.5.6-0ubuntu1.11.5.6-0ubuntu1.2	1.5.6-0ubuntu1.2+esm1
`memcached` Ubuntu:20.04:LTS	before 1.5.22-2ubuntu0.3, plus listed versions 1.5.10-0ubuntu31.5.10-0ubuntu41.5.19-21.5.20-11.5.22-1ubuntu11.5.22-21.5.22-2ubuntu0.11.5.22-2ubuntu0.2	1.5.22-2ubuntu0.3

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2022-48571 is a high vulnerability (CVSS 7.5) in Memcached, published August 22, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.09%, the 65th percentile. Fixed in memcached 1.6.8.

References

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