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CVE-2017-7999

22
FAUCET Score

CVE-2017-7999 describes a denial-of-service vulnerability in Atlassian Eucalyptus versions prior to 4.4.1, specifically when operating in EDGE mode. Authenticated attackers with specific privileges can exploit this flaw to cause an E2 service outage. The vulnerability has a CVSS score of 6.5 (Medium), indicating a low attack complexity and no user interaction required, but it only impacts availability. 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
4.2.0CPE matchmatch criteria
cpe:2.3:a:eucalyptus:eucalyptus:4.2.0:*:*:*:*:*:*:*
4.2.1CPE matchmatch criteria
cpe:2.3:a:eucalyptus:eucalyptus:4.2.1:*:*:*:*:*:*:*
4.2.2CPE matchmatch criteria
cpe:2.3:a:eucalyptus:eucalyptus:4.2.2:*:*:*:*:*:*:*
4.3.0CPE matchmatch criteria
cpe:2.3:a:eucalyptus:eucalyptus:4.3.0:*:*:*:*:*:*:*
4.3.1CPE matchmatch criteria
cpe:2.3:a:eucalyptus:eucalyptus:4.3.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.02%
Probability of exploitation in next 30 days
EPSS Percentile
59.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0102 is in the 73rd percentile among its peer group of 21,939 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

eucalyptus.atlassian.net / wiki/display/advisories/ESA-33
Vendor Advisory