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Fencer Vulns
high 8.3

CVE-2023-28395 json

CVE-2023-28395

published 2023-03-28 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-32091

cvss
8.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 51%
public exploits
0
none known

Summary

Osprey Pump Controller version 1.01 is vulnerable to a weak session token generation algorithm that can be predicted and can aid in authentication and authorization bypass. This may allow an attacker to hijack a session by predicting the session id and gain unauthorized access to the product.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-23-082-06 updated cvss 8.3

ProPump and Controls Osprey Pump Controller (Update A)

  • ProPump and Controls, Inc. Osprey Pump Controller <20230518.
    affected: mitigation propumpservice.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
21 mo ago

Exploit prediction

0.65% chance of exploitation in the next 30 days, higher than 51% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 8.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected products

  • ProPump and Controls, Inc. Osprey Pump Controller

Classification

Weakness
  • CWE-338 Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.