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CVE-2021-41278

20
FAUCET Score

CVE-2021-41278 describes a broken encryption implementation in the app-functions-sdk's "AES" transform within EdgeX Foundry releases prior to Jakarta, affecting edgexfoundry app_service_configurable, application_functions_software_development_kit, and edgex_foundry. This vulnerability, rated Medium (CVSS 5.7), allows authenticated attackers to decrypt messages via unspecified vectors due to weak encryption (CWE-327), with a high impact on confidentiality. While not enabled by default, users who utilize this specific transform are urged to upgrade to the Jakarta release and switch to the new "aes256" transform. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.1.0CPE matchmatch criteria
cpe:2.3:a:edgexfoundry:app_service_configurable:*:*:*:*:*:go:*:*
< 2.1.0CPE matchmatch criteria
cpe:2.3:a:edgexfoundry:application_functions_software_development_kit:*:*:*:*:*:go:*:*
< 2.1.0CPE matchmatch criteria
cpe:2.3:a:edgexfoundry:edgex_foundry:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.4MEDIUM

CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
1.2
Impact Score
4.2
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.31%
Probability of exploitation in next 30 days
EPSS Percentile
23.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0031 is in the 34th percentile among its peer group of 15,224 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 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 (3)

github_advisorypatch availablevia nvd_reference
View patch
gopatch availablevia ghsa
Product: github.com/edgexfoundry/app-functions-sdk-go/v2Fixed in: 2.1.0
gopatch availablevia ghsa
Product: github.com/edgexfoundry/app-service-configurableFixed in: 2.1.0

Vendor Advisories (1)

goGHSA-6c7m-qwxj-mvhpmedium

Broken encryption in EdgeX Foundry

Nov 19, 2021

References

github.com / edgexfoundry/app-functions-sdk-go/commit/8fa13c6388ce76a6b878b54490eac61aa7d81165
PatchThird Party Advisory
github.com / edgexfoundry/app-functions-sdk-go/security/advisories/GHSA-6c7m-qwxj-mvhp
Third Party Advisory