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TI-2021-18549 Aliases CVE-2021-42028GHSA-p8vq-xh8f-9wx6

Out-of-bounds write in Siemens syngo fastView

Priority LOW 36CWE-787Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

A vulnerability has been identified in syngo fastView (All versions). The affected application lacks proper validation of user-supplied data when parsing BMP files. This could result in an out-of-bounds write past the end of an allocated structure. An attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-14860)

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00323 25th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Siemenssyngo fastViewAll versions—No fix listedCNA
  • syngo fastView VendorSiemens Affected All versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:siemens-healthineers:syngo_fastview:*:*:*:*:*:*:*:*all versionsVulnerableSiemens-healthineers
  • cpe:2.3:a:siemens-healthineers:syngo_fastview:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Siemens-healthineers

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-42028
  2. 2026-10-03 Alias added: GHSA-p8vq-xh8f-9wx6

References

  • TI-2026-20057 Authentication bypass in Fortinet FortiWeb KEVCVSS 3.1CRITICAL 9.4
  • TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
  • TI-2025-18911 Heap-based buffer overflow in Fortinet FortiSwitchManager KEVCVSS 3.1CRITICAL 9.8
  • TI-2025-09686 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.8
  • TI-2022-07142 Code injection in Spring Framework KEVCVSS 3.1CRITICAL 9.8
  • TI-2021-19919 Apache Log4j2 JNDI features do not protect against attacker controlled LDAP and other JNDI related endpoints KEVCVSS 3.1CRITICAL 10.0
See all 2487 →

Sources