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CVE-2017-9979

30
FAUCET Score

CVE-2017-9979 describes a Cross-Site Scripting (XSS) vulnerability in OSNEXUS QuantaStor v4 virtual appliances prior to version 4.3.1. This flaw allows an attacker to inject arbitrary HTML or JavaScript into error responses when an invalid REST call is made, as the response is not properly sanitized. Rated Medium with a CVSS score of 6.1, the attack requires user interaction (UI:R) but can lead to client-side information disclosure and integrity compromise (C:L, I:L). While not listed in KEV and with no active exploitation observed, public exploit code (EDB-42517) is available, though community discussion and media coverage are minimal.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.3.0CPE matchmatch criteria
cpe:2.3:a:osnexus:quantastor:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.1MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.56%
Probability of exploitation in next 30 days
EPSS Percentile
83.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
ExploitDB: EDB-42517 · Aug 18, 2017
This CVE's current EPSS score of 0.0256 is in the 92nd percentile among its peer group of 26,209 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 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

packetstormsecurity.com / files/143780/OSNEXUS-QuantaStor-4-Information-Disclosure.html
ExploitThird Party AdvisoryVDB Entry
seclists.org / fulldisclosure/2017/Aug/23
ExploitMailing ListThird Party Advisory
exploit-db.com / exploits/42517
ExploitThird Party AdvisoryVDB Entry
vvvsecurity.com / advisories/vvvsecurity-advisory-2017-6943.txt
ExploitThird Party AdvisoryURL Repurposed