CVE-2026-77102

HIGHNVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-09-08. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: None knownExposed: 0

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

CommServe contained a heap-based buffer overflow issue affecting service availability. Software customers upgrade to resolved maintenance release. Update CommServe.

CVSS v3
7.5
EG Score
7.5(high)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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
Severity75% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
19%
KEV
Not listed

Published

September 8, 2026

Last Modified

September 9, 2026

Advisory Details (1)

Auto-updated Sep 8, 2026
No patch confirmed yet.
generic

CV_2026_08_4

https://documentation.commvault.com/securityadvisories/CV_2026_08_4.html

Vendor Advisories for CVE-2026-77102(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 27× in last 7d / 54× 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 07:27 UTCEG score recompute
  2. 2026-09-21 07:27 UTCGHSA enrichment
  3. 2026-09-20 20:16 UTCEPSS rescore
  4. 2026-09-20 19:44 UTCGHSA enrichment
  5. 2026-09-20 08:09 UTCGHSA enrichment
  6. 2026-09-19 20:34 UTCEG score recompute
  7. 2026-09-19 20:34 UTCGHSA enrichment
  8. 2026-09-19 08:58 UTCGHSA enrichment
  9. 2026-09-18 21:21 UTCEG score recompute
  10. 2026-09-18 21:21 UTCGHSA enrichment
  11. 2026-09-18 19:28 UTCEPSS rescore
  12. 2026-09-18 09:19 UTCGHSA enrichment
  13. 2026-09-17 21:44 UTCEG score recompute
  14. 2026-09-17 21:44 UTCGHSA enrichment
  15. 2026-09-17 10:09 UTCGHSA enrichment
  16. 2026-09-16 22:33 UTCEG score recompute
  17. 2026-09-16 22:33 UTCGHSA enrichment
  18. 2026-09-16 14:08 UTCEPSS rescore
  19. 2026-09-16 10:58 UTCEG score recompute
  20. 2026-09-16 10:58 UTCGHSA enrichment
  21. 2026-09-16 05:15 UTCEPSS rescore
  22. 2026-09-15 23:22 UTCGHSA enrichment
  23. 2026-09-15 11:21 UTCEG score recompute
  24. 2026-09-15 11:21 UTCGHSA enrichment
  25. 2026-09-15 03:12 UTCEPSS rescore
Show 29 more
  1. 2026-09-14 23:46 UTCGHSA enrichment
  2. 2026-09-14 12:11 UTCGHSA enrichment
  3. 2026-09-14 00:36 UTCEG score recompute
  4. 2026-09-14 00:36 UTCGHSA enrichment
  5. 2026-09-13 13:01 UTCGHSA enrichment
  6. 2026-09-13 01:26 UTCEG score recompute
  7. 2026-09-13 01:26 UTCGHSA enrichment
  8. 2026-09-12 15:02 UTCEPSS rescore
  9. 2026-09-12 13:51 UTCGHSA enrichment
  10. 2026-09-12 02:15 UTCEG score recompute
  11. 2026-09-12 02:15 UTCGHSA enrichment
  12. 2026-09-11 14:53 UTCEPSS rescore
  13. 2026-09-11 14:39 UTCEG score recompute
  14. 2026-09-11 14:39 UTCGHSA enrichment
  15. 2026-09-11 03:04 UTCGHSA enrichment
  16. 2026-09-10 15:29 UTCEG score recompute
  17. 2026-09-10 15:29 UTCGHSA enrichment
  18. 2026-09-10 09:35 UTCEPSS rescore
  19. 2026-09-10 03:43 UTCEG score recompute
  20. 2026-09-10 03:43 UTCGHSA enrichment
  21. 2026-09-09 16:08 UTCEG score recompute▼ 1.20
  22. 2026-09-09 16:08 UTCGHSA enrichment
  23. 2026-09-09 16:07 UTCNVD updateCVSS v3 → 7.5
  24. 2026-09-09 13:43 UTCGHSA enrichment
  25. 2026-09-09 02:07 UTCGHSA enrichment
  26. 2026-09-08 14:31 UTCEG score recompute
  27. 2026-09-08 13:31 UTCEG score recompute
  28. 2026-09-08 12:26 UTCEG score recompute
  29. 2026-09-08 12:24 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-77102?
CVE-2026-77102 is a high vulnerability published on September 8, 2026. CommServe contained a heap-based buffer overflow issue affecting service availability. Software customers upgrade to resolved maintenance release. Update CommServe.
When was CVE-2026-77102 disclosed?
CVE-2026-77102 was first published in the National Vulnerability Database on September 8, 2026, with the most recent update on September 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-77102 actively exploited?
CVE-2026-77102 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 80.9% of all scored CVEs.
What is the CVSS score of CVE-2026-77102?
CVE-2026-77102 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-77102?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-77102, 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-2026-77102

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