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CVE-2023-27478

21
FAUCET Score

CVE-2023-27478 describes a data exposure vulnerability in libmemcached-awesome, an open-source C/C++ client library for the memcached server. The flaw allows the library to return stale data for a key if a previous request timed out due to a low POLL_TIMEOUT setting. With a CVSS score of 6.5 (Medium), this vulnerability has a network attack vector and low attack complexity, potentially leading to unauthorized disclosure of information (C:L, I:L). There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 1.0.18, < 1.1.4CPE matchmatch criteria
cpe:2.3:a:awesome:libmemcached:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
2.5
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.75%
Probability of exploitation in next 30 days
EPSS Percentile
51.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0075 is in the 32nd percentile among its peer group of 23,705 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (8)

github_advisorypatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: Azure Linux 3.0 x64Fixed in: 1.1.4-1
microsoftpatch availablevia msrc
Product: Azure Linux 3.0 ARMFixed in: 1.1.4-1
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 x64Fixed in: 1.1.4-1
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 ARMFixed in: 1.1.4-1
microsoftpatch availablevia msrc
Product: azl3 libmemcached-awesome 1.1.1-4 on Azure Linux 3.0Fixed in: 1.1.4-1
microsoftpatch availablevia msrc
Product: cbl2 libmemcached-awesome 1.1.4-1 on CBL Mariner 2.0Fixed in: 1.1.4-1
microsoftpatch availablevia msrc
Product: azl3 libmemcached-awesome 1.1.4-1 on Azure Linux 3.0Fixed in: 1.1.4-1

Vendor Advisories (3)

microsoft2024-Jul/CVE-2023-27478

CVE-2023-27478

Jul 9, 2024
microsoft2023-Mar/CVE-2023-27478Moderate

Disclosure of unrelated data in libmemcached-awesome

Mar 14, 2023
redhatCVE-2023-27478Moderate

libmemcached: Disclosure of unrelated data

Mar 7, 2023

References

github.com / awesomized/libmemcached/commit/48dcc61a
Patch
github.com / awesomized/libmemcached/releases/tag/1.1.4
Release Notes
github.com / awesomized/libmemcached/security/advisories/GHSA-wwmh-39wj-fx59
PatchThird Party Advisory
github.com / php-memcached-dev/php-memcached/issues/531
ExploitIssue TrackingPatchThird Party Advisory