CVE-2026-77654

MEDIUMPre-NVD 6.16.1
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.1%, top 99% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this week
6.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.1Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Improper 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.

CVSS v3
6.1
EG Score
6.1(medium)
EG Risk
27(Track)
EG Risk 27/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity61% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
1%
KEV
Not listed

Published

September 8, 2026

Last Modified

September 8, 2026

Vendor Advisories for CVE-2026-77654(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 18× in last 7d / 34× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-19 22:17 UTCEG score recompute
  2. 2026-09-19 22:17 UTCGHSA enrichment
  3. 2026-09-18 21:32 UTCEG score recompute
  4. 2026-09-18 21:32 UTCGHSA enrichment
  5. 2026-09-18 19:28 UTCEPSS rescore
  6. 2026-09-17 20:49 UTCEG score recompute
  7. 2026-09-17 20:49 UTCGHSA enrichment
  8. 2026-09-16 20:06 UTCEG score recompute
  9. 2026-09-16 20:06 UTCGHSA enrichment
  10. 2026-09-16 14:08 UTCEPSS rescore
  11. 2026-09-16 05:15 UTCEPSS rescore
  12. 2026-09-15 19:22 UTCEG score recompute
  13. 2026-09-15 19:22 UTCGHSA enrichment
  14. 2026-09-15 03:12 UTCEPSS rescore
  15. 2026-09-15 03:12 UTCEPSS rescore
  16. 2026-09-14 18:38 UTCGHSA enrichment
  17. 2026-09-13 17:50 UTCEG score recompute
  18. 2026-09-13 17:50 UTCGHSA enrichment
  19. 2026-09-12 17:06 UTCGHSA enrichment
  20. 2026-09-11 16:22 UTCEG score recompute
  21. 2026-09-11 16:22 UTCGHSA enrichment
  22. 2026-09-11 14:53 UTCEPSS rescore
  23. 2026-09-10 15:38 UTCEG score recompute
  24. 2026-09-10 15:38 UTCGHSA enrichment
  25. 2026-09-10 09:35 UTCEPSS rescore
Show 9 more
  1. 2026-09-09 14:54 UTCGHSA enrichment
  2. 2026-09-08 14:09 UTCGHSA enrichment
  3. 2026-09-08 13:37 UTCEG score recompute
  4. 2026-09-08 13:37 UTCGHSA enrichment
  5. 2026-09-08 12:35 UTCEG score recompute
  6. 2026-09-08 12:34 UTCGHSA enrichment
  7. 2026-09-08 11:31 UTCEG score recompute
  8. 2026-09-08 10:52 UTCEG score recompute
  9. 2026-09-08 10:51 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-77654?
CVE-2026-77654 is a medium vulnerability published on September 8, 2026. Improper 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…
When was CVE-2026-77654 disclosed?
CVE-2026-77654 was first published in the National Vulnerability Database on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-77654 actively exploited?
CVE-2026-77654 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 99.1% of all scored CVEs.
What is the CVSS score of CVE-2026-77654?
CVE-2026-77654 has a CVSS v3 base score of 6.1 (NVD).
How do I remediate CVE-2026-77654?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-77654, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-77654

Explore →

Is Your Infrastructure Affected by CVE-2026-77654?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.