CVE-2026-6958

HIGHPre-NVD 7.87.8—
EchelonGraph scoreHIGH confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-09-04. a secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: Elevated riskExposed: 0

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

Acunetix 25.11.251107123 for Windows contains a local privilege escalation vulnerability in the Web Vulnerability Scanning Engine (wvsc.exe) that allows low-privileged local attackers to execute arbitrary code as SYSTEM by exploiting a missing hardcoded directory path for OpenSSL-related files. Attackers can create the missing directory, place a malicious file at the expected path, and cause the SYSTEM-level wvsc.exe process to load and execute it, resulting in full privilege escalation.

CVSS v3
7.8
EG Score
7.8(high)
EG Risk
51(Track*)
EG Risk 51/100SSVC: 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
Severity78% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
0%
EPSS %ILE
4%
KEV
Not listed

Published

September 4, 2026

Last Modified

September 10, 2026

Advisory Details (4)

Auto-updated Sep 4, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic

Acunetix 25.11.251107123 Local Privilege Escalation via wvsc.exe | Advisories | VulnCheck

https://www.vulncheck.com/advisories/acunetix-local-privilege-escalation-via-wvsc-exe
generic

Invicti Web + API | Web Application Security Scanner

https://www.acunetix.com/
generic🟡 PoC Available

Full Disclosure: Acunetix 25.11.x - Local Privilege Escalation Vulnerability via OpenSSL Configuration (CVE-2026-6958)

https://seclists.org/fulldisclosure/2026/Sep/0
generic
https://olografix.org/acme/_poc/CVE-2026-6958.pdf

Vendor Advisories for CVE-2026-6958(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 26× in last 7d / 66× 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. 2026-09-20 18:06 UTCGHSA enrichment
  2. 2026-09-20 07:10 UTCGHSA enrichment
  3. 2026-09-19 19:36 UTCEG score recompute
  4. 2026-09-19 19:36 UTCGHSA enrichment
  5. 2026-09-19 08:43 UTCGHSA enrichment
  6. 2026-09-18 21:42 UTCEG score recompute
  7. 2026-09-18 21:42 UTCGHSA enrichment
  8. 2026-09-18 19:28 UTCEPSS rescore
  9. 2026-09-18 10:49 UTCGHSA enrichment
  10. 2026-09-17 23:56 UTCEG score recompute
  11. 2026-09-17 23:56 UTCGHSA enrichment
  12. 2026-09-17 12:03 UTCGHSA enrichment
  13. 2026-09-17 01:10 UTCGHSA enrichment
  14. 2026-09-16 14:17 UTCEG score recompute
  15. 2026-09-16 14:17 UTCGHSA enrichment
  16. 2026-09-16 14:08 UTCEPSS rescore
  17. 2026-09-16 05:15 UTCEPSS rescore
  18. 2026-09-16 03:23 UTCGHSA enrichment
  19. 2026-09-15 16:29 UTCGHSA enrichment
  20. 2026-09-15 05:35 UTCEG score recompute
  21. 2026-09-15 05:35 UTCGHSA enrichment
  22. 2026-09-15 03:12 UTCEPSS rescore
  23. 2026-09-14 18:29 UTCGHSA enrichment
  24. 2026-09-14 07:31 UTCGHSA enrichment
  25. 2026-09-13 20:38 UTCEG score recompute
Show 41 more
  1. 2026-09-13 20:38 UTCGHSA enrichment
  2. 2026-09-13 09:44 UTCGHSA enrichment
  3. 2026-09-12 22:51 UTCEG score recompute
  4. 2026-09-12 22:51 UTCGHSA enrichment
  5. 2026-09-12 15:02 UTCEPSS rescore
  6. 2026-09-12 11:58 UTCGHSA enrichment
  7. 2026-09-12 01:04 UTCGHSA enrichment
  8. 2026-09-11 14:11 UTCEG score recompute
  9. 2026-09-11 14:11 UTCGHSA enrichment
  10. 2026-09-11 03:18 UTCGHSA enrichment
  11. 2026-09-10 16:25 UTCEG score recompute
  12. 2026-09-10 16:25 UTCGHSA enrichment
  13. 2026-09-10 15:28 UTCEG score recompute
  14. 2026-09-10 15:28 UTCGHSA enrichment
  15. 2026-09-10 10:16 UTCEG score recompute
  16. 2026-09-10 10:16 UTCGHSA enrichment
  17. 2026-09-10 09:35 UTCEPSS rescore
  18. 2026-09-09 23:22 UTCGHSA enrichment
  19. 2026-09-09 09:58 UTCGHSA enrichment
  20. 2026-09-08 23:04 UTCEG score recompute
  21. 2026-09-08 23:04 UTCGHSA enrichment
  22. 2026-09-08 22:01 UTCEPSS rescore
  23. 2026-09-08 07:44 UTCGHSA enrichment
  24. 2026-09-07 20:51 UTCEG score recompute
  25. 2026-09-07 20:51 UTCGHSA enrichment
  26. 2026-09-07 16:01 UTCEPSS rescore
  27. 2026-09-07 09:57 UTCGHSA enrichment
  28. 2026-09-06 23:04 UTCEG score recompute
  29. 2026-09-06 23:03 UTCGHSA enrichment
  30. 2026-09-06 13:47 UTCEPSS rescore
  31. 2026-09-06 12:06 UTCGHSA enrichment
  32. 2026-09-06 01:11 UTCEG score recompute
  33. 2026-09-06 01:11 UTCGHSA enrichment
  34. 2026-09-05 15:31 UTCEPSS rescore
  35. 2026-09-05 14:17 UTCGHSA enrichment
  36. 2026-09-05 03:22 UTCGHSA enrichment
  37. 2026-09-04 16:28 UTCEG score recompute
  38. 2026-09-04 16:28 UTCGHSA enrichment
  39. 2026-09-04 15:21 UTCEG score recompute
  40. 2026-09-04 15:09 UTCEG score recompute
  41. 2026-09-04 15:09 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-6958?
CVE-2026-6958 is a high vulnerability published on September 4, 2026. Acunetix 25.11.251107123 for Windows contains a local privilege escalation vulnerability in the Web Vulnerability Scanning Engine (wvsc.exe) that allows low-privileged local attackers to execute arbitrary code as SYSTEM by exploiting a missing hardcoded directory path for OpenSSL-related files.…
When was CVE-2026-6958 disclosed?
CVE-2026-6958 was first published in the National Vulnerability Database on September 4, 2026, with the most recent update on September 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-6958 actively exploited?
CVE-2026-6958 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 96.2% of all scored CVEs.
What is the CVSS score of CVE-2026-6958?
CVE-2026-6958 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-6958?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-6958, 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-2026-6958

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