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Fencer Intel
high 7.5

CVE-2020-10931 in the critical feed json

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 tr…

published 6y ago modified 2mo ago also BIT-memcached-2020-10931 , EUVD-2020-3337

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
28.1%
EPSS 28.1% chance of exploitation in 30 days, percentile 98%
public exploits
0
none known

Summary

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.

Patch / fix

  • bitnami memcached 1.6.2
  • memcached memcached 1.6.2
  • memcached Debian 14, Debian 13, Debian 12 1.6.2-1

debian advisories DEBIAN-CVE-2020-10931

  • memcached openSUSE Tumbleweed 1.6.9-2.3

opensuse advisories openSUSE-SU-2024:11045-1

Is CVE-2020-10931 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2020-10931 updated cvss 7.5

memcached: mishandled memcpy into a stack-based buffer may lead to DoS

  • Red Hat Enterprise Linux 6 memcached Red Hat Enterprise Linux 7 memcached Red Hat Enterprise Linux 8 memcached Red Hat OpenStack Platform 10 (Newton) memcached Red Hat OpenStack Platform 13 (Queens) memcached
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

28.14% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • github.com https://github.com/memcached/memcached/issues/629 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P
OSV 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
bitnami memcached
>=1.6.0, <1.6.2
1.6.2

Classification

Weakness
  • CWE-120 Buffer Copy without Checking Size of Input

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.