CVE-2025-9242

CRITICALNVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score elevated to 9.8 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2025-11-12), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 9.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 4 sources updated this weekExploited in the wild
9.8EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 91%CVSS: 9.8Exploit: cisa kev · ssvc active · epss top5pct · epss high · public exploitExposed: 0

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

An Out-of-bounds Write vulnerability in WatchGuard Fireware OS may allow a remote unauthenticated attacker to execute arbitrary code. This vulnerability affects both the Mobile User VPN with IKEv2 and the Branch Office VPN using IKEv2 when configured with a dynamic gateway peer.This vulnerability affects Fireware OS 11.10.2 up to and including 11.12.4_Update1, 12.0 up to and including 12.11.3 and 2025.1.

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
99(Act)
EG Risk 99/100SSVC: Act

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
Severity98% × 45%
Exploitation100% × 40%
Automatability100% × 15%
Action: Fix now — active exploitation, automatable, high impact.
EPSS PROB
91%
EPSS %ILE
100%
KEV
⚠ Exploited

Published

September 17, 2025

Last Modified

June 17, 2026

Advisory Details (3)

Auto-updated Aug 1, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa.
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-9242
generic

watchTowr-vs-WatchGuard-CVE-2025-9242/watchTowr-vs-WatchGuard-CVE-2025-9242.py at main · watchtowrlabs/watchTowr-vs-WatchGuard-CVE-2025-9242 · GitHub

https://github.com/watchtowrlabs/watchTowr-vs-WatchGuard-CVE-2025-9242/blob/main/watchTowr-vs-WatchGuard-CVE-2025-9242.py
generic🔴 Active Exploitation

WatchGuard Firebox iked Out of Bounds Write Vulnerability | WatchGuard Technologies

https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2025-00015

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 47× in last 7d / 194× 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.

Showing the most recent 100 of 469 total refreshes for this CVE.

  1. 2026-08-08 07:46 UTCGHSA enrichment
  2. 2026-08-08 03:42 UTCGHSA enrichment
  3. 2026-08-07 23:38 UTCGHSA enrichment
  4. 2026-08-07 19:34 UTCGHSA enrichment
  5. 2026-08-07 17:09 UTCCISA KEV update
  6. 2026-08-07 15:30 UTCGHSA enrichment
  7. 2026-08-07 11:26 UTCGHSA enrichment
  8. 2026-08-07 07:22 UTCGHSA enrichment
  9. 2026-08-07 03:18 UTCGHSA enrichment
  10. 2026-08-06 23:14 UTCGHSA enrichment
  11. 2026-08-06 19:10 UTCGHSA enrichment
  12. 2026-08-06 15:06 UTCGHSA enrichment
  13. 2026-08-06 11:01 UTCGHSA enrichment
  14. 2026-08-06 06:57 UTCGHSA enrichment
  15. 2026-08-06 02:53 UTCGHSA enrichment
  16. 2026-08-05 22:49 UTCGHSA enrichment
  17. 2026-08-05 18:45 UTCGHSA enrichment
  18. 2026-08-05 17:25 UTCCISA KEV update
  19. 2026-08-05 14:41 UTCGHSA enrichment
  20. 2026-08-05 10:37 UTCGHSA enrichment
  21. 2026-08-05 06:32 UTCGHSA enrichment
  22. 2026-08-05 02:27 UTCGHSA enrichment
  23. 2026-08-04 22:23 UTCGHSA enrichment
  24. 2026-08-04 18:19 UTCGHSA enrichment
  25. 2026-08-04 17:02 UTCCISA KEV update
Show 75 more
  1. 2026-08-04 14:14 UTCEG score recompute
  2. 2026-08-04 14:14 UTCGHSA enrichment
  3. 2026-08-04 10:38 UTCEPSS rescore
  4. 2026-08-04 10:10 UTCGHSA enrichment
  5. 2026-08-04 06:04 UTCGHSA enrichment
  6. 2026-08-04 02:00 UTCGHSA enrichment
  7. 2026-08-03 21:56 UTCGHSA enrichment
  8. 2026-08-03 19:22 UTCCISA KEV update
  9. 2026-08-03 17:51 UTCGHSA enrichment
  10. 2026-08-03 13:45 UTCGHSA enrichment
  11. 2026-08-03 09:41 UTCGHSA enrichment
  12. 2026-08-03 05:35 UTCGHSA enrichment
  13. 2026-08-03 01:31 UTCGHSA enrichment
  14. 2026-08-02 21:27 UTCGHSA enrichment
  15. 2026-08-02 17:23 UTCGHSA enrichment
  16. 2026-08-02 13:19 UTCGHSA enrichment
  17. 2026-08-02 09:15 UTCGHSA enrichment
  18. 2026-08-02 05:12 UTCGHSA enrichment
  19. 2026-08-02 01:08 UTCGHSA enrichment
  20. 2026-08-01 21:04 UTCGHSA enrichment
  21. 2026-08-01 17:00 UTCGHSA enrichment
  22. 2026-08-01 12:56 UTCGHSA enrichment
  23. 2026-08-01 08:52 UTCGHSA enrichment
  24. 2026-08-01 04:48 UTCGHSA enrichment
  25. 2026-08-01 00:42 UTCGHSA enrichment
  26. 2026-07-31 20:37 UTCGHSA enrichment
  27. 2026-07-31 16:33 UTCGHSA enrichment
  28. 2026-07-31 12:29 UTCGHSA enrichment
  29. 2026-07-31 08:25 UTCGHSA enrichment
  30. 2026-07-31 04:20 UTCGHSA enrichment
  31. 2026-07-31 00:17 UTCGHSA enrichment
  32. 2026-07-30 20:13 UTCGHSA enrichment
  33. 2026-07-30 16:09 UTCGHSA enrichment
  34. 2026-07-30 12:05 UTCEG score recompute
  35. 2026-07-30 12:05 UTCGHSA enrichment
  36. 2026-07-30 08:01 UTCGHSA enrichment
  37. 2026-07-30 03:57 UTCEG score recompute
  38. 2026-07-30 03:57 UTCGHSA enrichment
  39. 2026-07-30 01:30 UTCEPSS rescore
  40. 2026-07-29 23:53 UTCGHSA enrichment
  41. 2026-07-29 19:48 UTCGHSA enrichment
  42. 2026-07-29 19:27 UTCCISA KEV update
  43. 2026-07-29 15:43 UTCGHSA enrichment
  44. 2026-07-29 11:39 UTCGHSA enrichment
  45. 2026-07-29 07:35 UTCGHSA enrichment
  46. 2026-07-29 03:31 UTCGHSA enrichment
  47. 2026-07-28 23:26 UTCGHSA enrichment
  48. 2026-07-28 19:20 UTCGHSA enrichment
  49. 2026-07-28 15:16 UTCGHSA enrichment
  50. 2026-07-28 11:12 UTCGHSA enrichment
  51. 2026-07-28 07:07 UTCGHSA enrichment
  52. 2026-07-28 03:01 UTCGHSA enrichment
  53. 2026-07-27 22:57 UTCGHSA enrichment
  54. 2026-07-27 19:24 UTCCISA KEV update
  55. 2026-07-27 18:52 UTCGHSA enrichment
  56. 2026-07-27 17:17 UTCCISA KEV update
  57. 2026-07-27 14:46 UTCGHSA enrichment
  58. 2026-07-27 10:19 UTCGHSA enrichment
  59. 2026-07-27 06:13 UTCGHSA enrichment
  60. 2026-07-27 02:08 UTCGHSA enrichment
  61. 2026-07-26 22:04 UTCGHSA enrichment
  62. 2026-07-26 17:59 UTCGHSA enrichment
  63. 2026-07-26 13:56 UTCEG score recompute
  64. 2026-07-26 13:56 UTCGHSA enrichment
  65. 2026-07-26 09:52 UTCGHSA enrichment
  66. 2026-07-26 05:48 UTCGHSA enrichment
  67. 2026-07-26 01:44 UTCEG score recompute
  68. 2026-07-26 01:43 UTCGHSA enrichment
  69. 2026-07-24 14:17 UTCEPSS rescore
  70. 2026-07-23 03:03 UTCEG score recompute
  71. 2026-07-22 21:04 UTCGHSA enrichment
  72. 2026-07-22 19:40 UTCCISA KEV update
  73. 2026-07-22 16:58 UTCEG score recompute
  74. 2026-07-22 16:57 UTCGHSA enrichment
  75. 2026-07-22 14:08 UTCEPSS rescore

Publicly available exploits

(2 references)

Working exploit code is in the public domain (2 GitHub PoCs). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCUnusualGiraffe/Mass-Scanner-CVE-2025-9242
    First seen Jul 23, 2026

    Detection-only asynchronous IPv4 scanner for identifying WatchGuard Fireware version/build profiles associated with CVE-2025-9242 via IKEv2.

    Open source ↗
  • GitHub PoCwatchtowrlabs/watchTowr-vs-WatchGuard-CVE-2025-9242
    First seen Oct 1, 2025
    Open source ↗

Related CVEs(same CWE)

Frequently asked(6)

What is CVE-2025-9242?
CVE-2025-9242 is a critical vulnerability published on September 17, 2025. An Out-of-bounds Write vulnerability in WatchGuard Fireware OS may allow a remote unauthenticated attacker to execute arbitrary code. This vulnerability affects both the Mobile User VPN with IKEv2 and the Branch Office VPN using IKEv2 when configured with a dynamic gateway peer.This vulnerability…
When was CVE-2025-9242 disclosed?
CVE-2025-9242 was first published in the National Vulnerability Database on September 17, 2025, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-9242 actively exploited?
Yes. CISA added CVE-2025-9242 to the Known Exploited Vulnerabilities catalog on November 12, 2025, affecting WatchGuard Firebox. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2025-9242?
CVE-2025-9242 has a CVSS v3 base score of 9.8 (NVD).
Which products are affected by CVE-2025-9242?
CVE-2025-9242 affects WatchGuard Firebox. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2025-9242?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-9242, 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-2025-9242

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