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CVE-2016-1991

24
FAUCET Score

CVE-2016-1991 describes a high-severity vulnerability in HPE ArcSight ESM versions 5.x, 6.0, 6.5.x, and 6.8c, as well as ArcSight ESM Express before 6.9.1. This flaw allows remote authenticated users to perform "file download" attacks through unspecified vectors. With a CVSS score of 8.0 (High), successful exploitation could lead to high impact on confidentiality, integrity, and availability, requiring low privileges but user interaction. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.0, <= 5.6CPE matchmatch criteria
cpe:2.3:a:microfocus:arcsight_enterprise_security_manager:*:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:a:microfocus:arcsight_enterprise_security_manager:6.0:*:*:*:*:*:*:*
6.5CPE matchmatch criteria
cpe:2.3:a:microfocus:arcsight_enterprise_security_manager:6.5:*:*:*:*:*:*:*
6.8CPE matchmatch criteria
cpe:2.3:a:microfocus:arcsight_enterprise_security_manager:6.8:*:*:*:*:*:*:*
6.9CPE matchmatch criteria
cpe:2.3:a:microfocus:arcsight_enterprise_security_manager:6.9:*:*:*:express:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.0HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.1
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.57%
Probability of exploitation in next 30 days
EPSS Percentile
72.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0157 is in the 88th percentile among its peer group of 890 CVEs.

Social Chatter

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

h20566.www2.hpe.com / portal/site/hpsc/public/kb/docDisplay
PatchVendor Advisory
securitytracker.com / id/1035282
Third Party AdvisoryVDB Entry