SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2017-7930

An Improper Authentication issue was discovered in OSIsoft PI Server 2017 PI Data Archive versions prior to 2017.

HIGH 7.4EPSS 2.01%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (2.01%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

An Improper Authentication issue was discovered in OSIsoft PI Server 2017 PI Data Archive versions prior to 2017. PI Data Archive has protocol flaws with the potential to expose change records in the clear and allow a malicious party to spoof a server within a collective.

CVSS 3.0
7.4 HIGHCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS
2.01% probability · 81th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-287
Affected
osisoft/pi data archive
Source
ics-cert@hq.dhs.gov
EPSS trend
0%3%5%27 October 2026: 2.01%27 October 202627 October 2026

EPSS 2.0% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.