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Fencer Intel
critical 9.8

CVE-2021-44524 json

A vulnerability has been identified in SiPass integrated V2.76 (All versions), SiPass integrated V2.80 (All versions), SiPass integrated V2…

published 4y ago modified 4mo ago also EUVD-2021-31356

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.6%
EPSS 1.6% chance of exploitation in 30 days, percentile 76%
public exploits
0
none known

Summary

A vulnerability has been identified in SiPass integrated V2.76 (All versions), SiPass integrated V2.80 (All versions), SiPass integrated V2.85 (All versions), Siveillance Identity V1.5 (All versions), Siveillance Identity V1.6 (All versions < V1.6.284.0). Affected applications insufficiently limit the access to the internal user authentication service. This could allow an unauthenticated remote attacker to trigger several actions on behalf of valid user accounts.

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Vendor advisories

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

cisa ICSA-21-350-14 updated cvss 7.5

Siemens Siveillance Identity

  • Siemens Siveillance Identity V1.5
    affected: fixed in V1.6.284.0
  • Siemens Siveillance Identity V1.6 <V1.6.284.0
    affected: fixed in V1.6.284.0 support.industry.siemens.com

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

cisa ICSA-21-350-19 updated cvss 7.5

Siemens SiPass Integrated

  • Siemens SiPass integrated V2.76
    affected: fixed in V2.76
  • Siemens SiPass integrated V2.80 Siemens SiPass integrated V2.85
    affected: vendor fix

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

Exploit prediction

1.63% chance of exploitation in the next 30 days, higher than 76% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

  • Siemens SiPass integrated V2.76
  • Siemens SiPass integrated V2.80
  • Siemens SiPass integrated V2.85
  • Siemens Siveillance Identity V1.5
  • Siemens Siveillance Identity V1.6

Classification

Weakness
  • CWE-668 Exposure of Resource to Wrong Sphere
  • CWE-287 Improper Authentication

References

Sources

Fencer Intel 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.