Secuno
ENNL
Book demo

CVE-2026-47784

Memcached vulnerability

8.1 HIGHEPSS 0.55%
  1. Published20 May 2026

Description

In memcached before 1.6.42, password data for SASL password database authentication has a timing side channel because memcmp is used by sasl_server_userdb_checkpass.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityHigh
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Memcached< 1.6.42

Remediation

Fixed in
Memcached≥ 1.6.42

References

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

CVE-2026-779879.8
A server-side request forgery (SSRF) vulnerability was identified in the notebook…
CVE-2026-163158.7
OMICRON StationGuard before version 4.10 contains a cryptographic timing side-channel…
CVE-2026-477838.1
In memcached before 1.6.42, username data for SASL password database authentication has…
CVE-2026-426028.1
azureauthextension is the Azure Authenticator Extension. From 0.124.0 to 0.150.0, a…
CVE-2026-415889.0
RELATE is a web-based courseware package. Prior to commit 2f68e16, there is a timing…
CVE-2026-235199.8
RustCrypto CMOV provides conditional move CPU intrinsics which are guaranteed on major…

Frequently asked

Is CVE-2026-47784 being actively exploited?

CVE-2026-47784 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.55%.

How severe is CVE-2026-47784?

CVE-2026-47784 has a CVSS 3.1 base score of 8.1, rated high. EPSS estimates a 0.55% probability of exploitation.

Which products are affected by CVE-2026-47784?

Affected products include Memcached.

How do I fix CVE-2026-47784?

Upgrade affected software to a fixed version, for example Memcached 1.6.42 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-47784 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

See how prioritisation worksBook a demo

Get Patch this first every Monday

Five vulnerabilities that matter this week, ranked on real exploitation. Plain language, one email, no spam.

You can unsubscribe with one click from every issue. We handle your details as described in our privacy policy.

Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.