CVE-2025-11845

MEDIUMNVD 4.94.9—
EchelonGraph scoreMEDIUM confidence

Score 4.9 from GitHub Security Advisory published 2026-02-24. NVD baseline CVSS 4.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
4.9EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 4.9Exploit: None knownExposed: 0

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

A null pointer dereference vulnerability in the certificate downloader CGI program of the Zyxel VMG3625-T50B firmware versions through 5.50(ABPM.9.6)C0 and the Zyxel WX3100-T0 firmware versions through 5.50(ABVL.4.8)C0 could allow an authenticated attacker with administrator privileges to trigger a denial-of-service (DoS) condition by sending a crafted HTTP request.

CVSS v3
4.9
EG Score
4.9(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
Severity49% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
54%
KEV
Not listed

Published

February 24, 2026

Last Modified

June 17, 2026

Advisory Details (1)

Auto-updated Aug 4, 2026
No patch confirmed yet.
generic

Zyxel security advisory for null pointer dereference and command injection vulnerabilities in certain 4G LTE/5G NR CPE, DSL/Ethernet CPE, Fiber ONTs, Security Routers, and Wireless Extenders | Zyxel Networks

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-null-pointer-dereference-and-command-injection-vulnerabilities-in-certain-4g-lte-5g-nr-cpe-dsl-ethernet-cpe-fiber-onts-security-routers-and-wireless-extenders-02-24-2026

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 5× in last 7d / 26× 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. 2026-09-22 14:47 UTCEPSS rescore
  2. 2026-09-20 20:14 UTCEPSS rescore
  3. 2026-09-18 19:27 UTCEPSS rescore
  4. 2026-09-16 14:06 UTCEPSS rescore
  5. 2026-09-16 05:13 UTCEPSS rescore
  6. 2026-09-15 03:08 UTCEPSS rescore
  7. 2026-09-13 16:45 UTCEPSS rescore
  8. 2026-09-12 14:59 UTCEPSS rescore
  9. 2026-09-11 14:51 UTCEPSS rescore
  10. 2026-09-11 09:35 UTCEPSS rescore
  11. 2026-09-10 09:33 UTCEPSS rescore
  12. 2026-09-08 21:59 UTCEPSS rescore
  13. 2026-09-07 16:00 UTCEPSS rescore
  14. 2026-09-06 13:46 UTCEPSS rescore
  15. 2026-09-04 13:59 UTCEPSS rescore
  16. 2026-09-04 05:05 UTCEPSS rescore
  17. 2026-09-02 14:10 UTCEPSS rescore
  18. 2026-09-01 13:52 UTCEPSS rescore
  19. 2026-09-01 04:38 UTCEPSS rescore
  20. 2026-08-30 19:16 UTCEPSS rescore
  21. 2026-08-30 01:21 UTCEPSS rescore
  22. 2026-08-28 21:40 UTCEPSS rescore
  23. 2026-08-27 14:24 UTCEPSS rescore
  24. 2026-08-26 14:45 UTCEPSS rescore
  25. 2026-08-25 13:47 UTCEPSS rescore
Show 48 more
  1. 2026-08-24 14:15 UTCEPSS rescore
  2. 2026-08-23 00:18 UTCEPSS rescore
  3. 2026-08-21 23:48 UTCEPSS rescore
  4. 2026-08-20 22:54 UTCEPSS rescore
  5. 2026-08-19 17:02 UTCEPSS rescore
  6. 2026-08-18 13:47 UTCEPSS rescore
  7. 2026-08-17 13:46 UTCEPSS rescore
  8. 2026-08-16 14:55 UTCEPSS rescore
  9. 2026-08-16 02:13 UTCEPSS rescore
  10. 2026-08-16 02:13 UTCEPSS rescore
  11. 2026-08-15 01:29 UTCEPSS rescore
  12. 2026-08-14 09:09 UTCEG score recompute
  13. 2026-08-14 09:09 UTCGHSA enrichment
  14. 2026-08-13 21:59 UTCEPSS rescore
  15. 2026-08-13 01:11 UTCEG score recompute
  16. 2026-08-13 01:11 UTCGHSA enrichment
  17. 2026-08-12 13:49 UTCEPSS rescore
  18. 2026-08-11 13:41 UTCEPSS rescore
  19. 2026-08-11 08:02 UTCEG score recompute
  20. 2026-08-11 08:02 UTCGHSA enrichment
  21. 2026-08-10 23:59 UTCEPSS rescore
  22. 2026-08-10 09:07 UTCEG score recompute
  23. 2026-08-10 09:07 UTCGHSA enrichment
  24. 2026-08-09 13:45 UTCEPSS rescore
  25. 2026-08-09 08:47 UTCEG score recompute
  26. 2026-08-09 08:47 UTCGHSA enrichment
  27. 2026-08-07 20:55 UTCEG score recompute
  28. 2026-08-07 20:55 UTCGHSA enrichment
  29. 2026-08-07 16:26 UTCEPSS rescore
  30. 2026-08-06 13:45 UTCEPSS rescore
  31. 2026-08-06 03:10 UTCEG score recompute
  32. 2026-08-06 03:10 UTCGHSA enrichment
  33. 2026-08-05 19:16 UTCEPSS rescore
  34. 2026-08-04 15:09 UTCEPSS rescore
  35. 2026-08-04 10:37 UTCEPSS rescore
  36. 2026-08-04 06:01 UTCEG score recompute
  37. 2026-08-04 06:01 UTCGHSA enrichment
  38. 2026-08-03 10:35 UTCEPSS rescore
  39. 2026-08-02 19:44 UTCEG score recompute
  40. 2026-08-02 19:44 UTCGHSA enrichment
  41. 2026-08-02 02:25 UTCEPSS rescore
  42. 2026-08-01 04:14 UTCEPSS rescore
  43. 2026-07-30 16:26 UTCEPSS rescore
  44. 2026-07-30 01:29 UTCEPSS rescore
  45. 2026-07-28 15:35 UTCEPSS rescore
  46. 2026-07-27 14:12 UTCEPSS rescore
  47. 2026-07-27 14:09 UTCEG score recompute
  48. 2026-07-27 14:09 UTCGHSA enrichment

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2025-11845?
CVE-2025-11845 is a medium vulnerability published on February 24, 2026. A null pointer dereference vulnerability in the certificate downloader CGI program of the Zyxel VMG3625-T50B firmware versions through 5.50(ABPM.9.6)C0 and the Zyxel WX3100-T0 firmware versions through 5.50(ABVL.4.8)C0 could allow an authenticated attacker with administrator privileges to trigger a…
When was CVE-2025-11845 disclosed?
CVE-2025-11845 was first published in the National Vulnerability Database on February 24, 2026, 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-2025-11845 actively exploited?
CVE-2025-11845 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 45.5% of all scored CVEs.
What is the CVSS score of CVE-2025-11845?
CVE-2025-11845 has a CVSS v3 base score of 4.9 (NVD).
How do I remediate CVE-2025-11845?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-11845, 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

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