Local Privilege Escalation via Misconfigured Sudoers Entry in Horizon Security Analyzer

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-77654
StatePUBLISHED
AssignerAlgoSec
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-08 11:17:44 UTC
Updated2026-09-08 14:03:48 UTC
DescriptionImproper Privilege Management vulnerability in Horizon Security Analyzer (formerly AlgoSec Firewall Analyzer) on Linux, 64 bit allows Privilege Escalation and Parameter Injection. A local user with access to the command line may escalate their privileges by abusing the parameters of a command that is approved in the sudoers file.  This issue affects Horizon Security Analyzer : A33.10, A33.20 and A33.30.

Risk And Classification

Primary CVSS: v4.0 6.1 MEDIUM from [email protected]

CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:L/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:Y/R:U/V:X/RE:L/U:Amber

Problem Types: CWE-266 | CWE-266 CWE-266 Incorrect privilege assignment

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary6.1MEDIUMCVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:L/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/C...
4.0CNACVSS6.1MEDIUMCVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:L/VI:H/VA:H/SC:H/SI:H/SA:H/S:N/A...

CVSS v4.0 Breakdown

Attack Vector
Local
Attack Complexity
Low
Attack Requirements
Present
Privileges Required
Low
User Interaction
Active
Confidentiality
Low
Integrity
High
Availability
High
Sub Conf.
High
Sub Integrity
High
Sub Availability
High

CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:L/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:Y/R:U/V:X/RE:L/U:Amber

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Algosec Horizon Security Analyzer affected A33.10 (up to build 300) Linux, 64 bit
CNA Algosec Horizon Security Analyzer affected A33.20 (up to build 170) Linux, 64 bit
CNA Algosec Horizon Security Analyzer affected A33.30 (up to build 110) Linux, 64 bit

References

ReferenceSourceLinkTags
techdocs.algosec.com/en/cves/Content/tech-notes/cves/cve-2026-77654.htm [email protected] techdocs.algosec.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Luis Vázquez Castaño - https://www.linkedin.com/in/lvazcas/ (en)

CNA: Luis Alberto Pacheco Lorenzo - https://www.linkedin.com/in/lucholapl/ (en)

CNA: Siemens Healthineers Red Team (en)

Additional Advisory Data

Solutions

CNA: Upgrade Horizon Foundation (formerly ASMS suite) to A33.10 (build 310 and above), A33.20 (build 180 and above) and  A33.30 (build 120 and above). https://portal.algosec.com/en/downloads/hotfix_releases

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