Authentication bypass in BMC Helix Network Management with SAML
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
BMC Helix Network Management on-prem from 26.3.00 before 26.3.01 contains an authentication bypass flaw (CWE-305) when SAML single sign-on is configured. An unauthenticated remote attacker can log in as the local administrator with any password on the web login page. The resulting SuperAdmin session lets the attacker modify device credentials, run device commands and alter audit records.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
BMC Helix Network Management on-prem 26.3.00 before 26.3.01 contains an authentication bypass vulnerability that allows unauthenticated attackers to log in as the local administrator with any password when SAML single sign-on is configured. Attackers can submit the administrator username with an arbitrary password on the web login page to obtain a SuperAdmin session, modify device credentials, run device commands, and alter audit records.
Why it matters now
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
Remediation
Upgrade BMC Helix Network Management to 26.3.01, the listed fixed version.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
- Fix · CNA BMC Helix Network Management (BMC Helix) Fixed in 26.3.01
Timeline
- 2026-10-16 Threatist record created from CVE-2026-111283
- 2026-10-16 CISA SSVC decision points changed
- 2026-10-18 1 new reference · CNA
- 2026-10-18 Alias added: GHSA-w2gx-x7ww-hgvm
- 2026-10-20 Title updated · CNA
- 2026-10-20 Affected versions changed · CNA
- 2026-10-25 EPSS moved to the 50th–90th percentile
References
Sources
- CVE-2026-111283 · CVE Program
- CVE-2026-111283 · NVD
- FIRST EPSS
- GHSA-w2gx-x7ww-hgvm · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences