CVE-2020-10931Memcached Buffer Overflow
Memcached 1.6.x before 1.6.2 allows remote attackers to cause a denial of service (daemon crash) via a crafted binary protocol header to try_read_command_binary in memcached.c.
Published Mar 24, 2020 · Updated Sep 8, 2026 · Also known as BIT-memcached-2020-10931, DEBIAN-CVE-2020-10931
Key Facts
Patch in the next maintenance window- CVE-2020-10931 is a high-severity vulnerability (CVSS 7.5 v3.1) affecting Memcached, memcached-devel (suse).
- It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
- EPSS estimates a 28% probability of exploitation in the next 30 days.
- Fixed versions are available, including Memcached 1.6.2, Memcached 1.6.2-1, Memcached 1.6.9-2.3.
- Brandefense priority: patch in the next maintenance window, because of its high severity, although no exploitation is known.
Scores
CVSS v3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS (30-day exploit likelihood)
28%
Higher than 98.0% of all scored CVEs
Exploit maturity
Proof of concept
ATLAS score
37/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Proof of concept
Public exploit code
1
Proof-of-concept links
In-the-wild evidence
0
Reports of active use
Advisories And Exploit References
Description
Memcached 1.6.x before 1.6.2 allows remote attackers to cause a denial of service (daemon crash) via a crafted binary protocol header to try_read_command_binary in memcached.c.
Affected Products
15 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| MemcachedMemcached | >= 1.6.0 | 1.6.2 |
| memcached-develsuse | See advisory | 1.6.9-2.3 |
Patched Releases
Memcached
1.6.2, 1.6.2-1, 1.6.9-2.3
memcached-devel
1.6.9-2.3
Timeline
Publicly disclosed
Mar 24, 2020
Last updated
Sep 8, 2026
Weakness Type
- CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
- CWE-121 Stack-based Buffer Overflow
References
- advisorysecurity-tracker.debian.org · CVE-2020-10931
- advisorygithub.com · ReleaseNotes162
- patchgithub.com · 02c6a2b
- exploitgithub.com · 629
- articlenvd.nist.gov · CVE-2020-10931
FAQ
Common Questions.
Memcached 1.6.x before 1.6.2 allows remote attackers to cause a denial of service (daemon crash) via a crafted binary protocol header to try_read_command_binary in memcached.c.
Affected: Memcached versions >= 1.6.0; memcached-devel (suse). The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including Memcached 1.6.2, Memcached 1.6.2-1, Memcached 1.6.9-2.3.
Brandefense priority: patch in the next maintenance window, because of its high severity, although no exploitation is known.
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