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CVE-2023-28656

24
FAUCET Score

CVE-2023-28656 is a high-severity vulnerability (CVSS 8.1) affecting NGINX Management Suite and related F5/NetApp products, allowing an authenticated attacker to access configuration objects outside their assigned environment. This network-exploitable flaw has low attack complexity and requires low privileges, potentially leading to high confidentiality and integrity impacts. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:netapp:ontap_select_deploy:-:*:*:*:*:*:*:*
>= 1.0.0, < 1.5.0CPE matchmatch criteria
cpe:2.3:a:f5:nginx_api_connectivity_manager:*:*:*:*:*:*:*:*
>= 2.0.0, < 2.9.0CPE matchmatch criteria
cpe:2.3:a:f5:nginx_instance_manager:*:*:*:*:*:*:*:*
>= 1.0.0, < 1.3.0CPE matchmatch criteria
cpe:2.3:a:f5:nginx_security_monitoring:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.1HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.53%
Probability of exploitation in next 30 days
EPSS Percentile
41.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0053 is in the 31st percentile among its peer group of 17,823 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

my.f5.com / manage/s/article/K000133417
Vendor Advisory
security.netapp.com / advisory/ntap-20230609-0006
Third Party Advisory