CVE-2026-84732

HIGHPre-NVD 8.78.7—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.7 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.5%, top 55% 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
8.7EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.7Exploit: None knownExposed: 0

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

Retransmissions of ACK packet ID in OpenVPN through 2.6.22 and 2.7.6 allow remote unauthenticated attackers to cause a denial of service via crafted inputs that trigger a timeout integer overflow

CVSS v3
8.7
EG Score
8.7(medium)
EG Risk
54(Track)
EG Risk 54/100SSVC: 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
Severity87% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
45%
KEV
Not listed

Published

September 7, 2026

Last Modified

September 8, 2026

References (1)

Vendor Advisories for CVE-2026-84732(1)

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

Affected Packages

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFixed inDependents
openvpn2.6.11-1 ... 2.7.7-1 (42 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
openvpn2.6.14-1 ... 2.7.7-1 (29 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
openvpn2.6.14-1 ... 2.7.5-1~bpo13+1 (25 versions)2.7.7-1—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 27× in last 7d / 57× 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. 2026-09-21 01:28 UTCEG score recompute
  2. 2026-09-21 01:28 UTCGHSA enrichment
  3. 2026-09-20 20:16 UTCEPSS rescore
  4. 2026-09-20 12:42 UTCGHSA enrichment
  5. 2026-09-20 00:02 UTCEG score recompute
  6. 2026-09-20 00:02 UTCGHSA enrichment
  7. 2026-09-19 11:22 UTCGHSA enrichment
  8. 2026-09-18 22:42 UTCEG score recompute
  9. 2026-09-18 22:42 UTCGHSA enrichment
  10. 2026-09-18 19:28 UTCEPSS rescore
  11. 2026-09-18 10:03 UTCGHSA enrichment
  12. 2026-09-17 21:23 UTCEG score recompute
  13. 2026-09-17 21:23 UTCGHSA enrichment
  14. 2026-09-17 19:32 UTCEPSS rescore
  15. 2026-09-17 08:41 UTCGHSA enrichment
  16. 2026-09-16 20:01 UTCEG score recompute
  17. 2026-09-16 20:01 UTCGHSA enrichment
  18. 2026-09-16 14:09 UTCEPSS rescore
  19. 2026-09-16 07:21 UTCEG score recompute
  20. 2026-09-16 07:21 UTCGHSA enrichment
  21. 2026-09-16 05:15 UTCEPSS rescore
  22. 2026-09-15 18:41 UTCGHSA enrichment
  23. 2026-09-15 05:58 UTCEG score recompute
  24. 2026-09-15 05:58 UTCGHSA enrichment
  25. 2026-09-15 03:12 UTCEPSS rescore
Show 32 more
  1. 2026-09-15 03:12 UTCEPSS rescore
  2. 2026-09-14 17:18 UTCGHSA enrichment
  3. 2026-09-14 04:38 UTCEG score recompute
  4. 2026-09-14 04:38 UTCGHSA enrichment
  5. 2026-09-13 15:58 UTCGHSA enrichment
  6. 2026-09-13 03:18 UTCEG score recompute
  7. 2026-09-13 03:17 UTCGHSA enrichment
  8. 2026-09-12 14:38 UTCGHSA enrichment
  9. 2026-09-12 01:58 UTCEG score recompute
  10. 2026-09-12 01:58 UTCGHSA enrichment
  11. 2026-09-11 14:53 UTCEPSS rescore
  12. 2026-09-11 14:53 UTCEPSS rescore
  13. 2026-09-11 13:18 UTCEG score recompute
  14. 2026-09-11 13:18 UTCGHSA enrichment
  15. 2026-09-11 00:38 UTCGHSA enrichment
  16. 2026-09-10 11:58 UTCEG score recompute
  17. 2026-09-10 11:58 UTCGHSA enrichment
  18. 2026-09-09 23:18 UTCGHSA enrichment
  19. 2026-09-09 08:34 UTCEG score recompute
  20. 2026-09-09 08:34 UTCGHSA enrichment
  21. 2026-09-08 22:01 UTCEPSS rescore
  22. 2026-09-08 19:53 UTCGHSA enrichment
  23. 2026-09-08 16:47 UTCEG score recompute
  24. 2026-09-08 16:47 UTCGHSA enrichment
  25. 2026-09-08 16:02 UTCEG score recompute
  26. 2026-09-08 16:02 UTCGHSA enrichment
  27. 2026-09-08 10:59 UTCGHSA enrichment
  28. 2026-09-07 22:11 UTCEG score recompute
  29. 2026-09-07 22:11 UTCGHSA enrichment
  30. 2026-09-07 09:30 UTCEG score recompute
  31. 2026-09-07 08:38 UTCEG score recompute
  32. 2026-09-07 08:36 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-84732?
CVE-2026-84732 is a high vulnerability published on September 7, 2026. Retransmissions of ACK packet ID in OpenVPN through 2.6.22 and 2.7.6 allow remote unauthenticated attackers to cause a denial of service via crafted inputs that trigger a timeout integer overflow
When was CVE-2026-84732 disclosed?
CVE-2026-84732 was first published in the National Vulnerability Database on September 7, 2026, with the most recent update 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-2026-84732 actively exploited?
CVE-2026-84732 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 55.4% of all scored CVEs.
What is the CVSS score of CVE-2026-84732?
CVE-2026-84732 has a CVSS v3 base score of 8.7 (NVD).
How do I remediate CVE-2026-84732?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-84732, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-84732

Explore →

Is Your Infrastructure Affected by CVE-2026-84732?

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

Start Free Scan →Browse All CVEs