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CVE-2021-31926

21
FAUCET Score

CVE-2021-31926 affects CubeCoders AMP 2.1.x before 2.1.1.2, allowing an authenticated attacker to open firewall ports by directly accessing an API endpoint, even without network configuration permissions. This medium-severity vulnerability (CVSS 6.5) has a low attack complexity and can lead to high integrity impact by modifying firewall rules. There is no evidence of active exploitation, public exploit code, or significant community discussion, suggesting it is not widely targeted.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.1.0, < 2.1.1.2CPE matchmatch criteria
cpe:2.3:a:cubecoders:amp:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.89%
Probability of exploitation in next 30 days
EPSS Percentile
55.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0089 is in the 68th percentile among its peer group of 21,974 CVEs.

Social Chatter

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

Remediation records are not available for this CVE.

References

github.com / CubeCoders/AMP/issues/443
ExploitThird Party Advisory