CVE-2019-25658

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-04-05. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this weekElevated
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.5Exploit: NoneExposed: 0

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

a-Mac Address Change 5.4 contains a local buffer overflow vulnerability that allows local attackers to crash the application by supplying oversized input to registration form fields. Attackers can paste 212 bytes of data into the 'Your Name', 'Your Company', or 'Register Code' fields and click the Register button to trigger a denial of service crash.

CVSS v3
5.5
EG Score
5.5(medium)
EG Risk
41(Track)
EG Risk 41/100SSVC: 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
Severity55% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
4%
KEV
Not listed

Published

April 5, 2026

Last Modified

July 24, 2026

Advisory Details (2)

Auto-updated Jul 25, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic

a-Mac Address Change 5.4 Local Buffer Overflow DoS | Advisories | VulnCheck

https://www.vulncheck.com/advisories/a-mac-address-change-local-buffer-overflow-dos
generic🟡 PoC Available

AMAC Address Change 5.4 - Denial of Service (PoC) - Windows dos Exploit

https://www.exploit-db.com/exploits/46292

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 13× in last 7d / 44× 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 140 total refreshes for this CVE.

  1. 2026-07-26 14:51 UTCEPSS rescore
  2. 2026-07-26 09:07 UTCEG score recompute
  3. 2026-07-26 09:07 UTCGHSA enrichment
  4. 2026-07-24 14:14 UTCEPSS rescore
  5. 2026-07-24 14:14 UTCEPSS rescore
  6. 2026-07-23 14:15 UTCEPSS rescore
  7. 2026-07-23 01:44 UTCEG score recompute
  8. 2026-07-22 22:25 UTCEG score recompute
  9. 2026-07-22 14:05 UTCEPSS rescore
  10. 2026-07-21 15:22 UTCEPSS rescore
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  12. 2026-07-20 17:04 UTCEPSS rescore
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  1. 2026-07-12 05:43 UTCEPSS rescore
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  27. 2026-06-21 01:57 UTCEPSS rescore
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  29. 2026-06-19 19:23 UTCEPSS rescore
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  31. 2026-06-18 17:50 UTCEPSS rescore
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  37. 2026-06-13 22:58 UTCEPSS rescore
  38. 2026-06-12 23:09 UTCEPSS rescore
  39. 2026-06-11 21:46 UTCGHSA enrichment
  40. 2026-06-11 13:58 UTCEPSS rescore
  41. 2026-06-10 22:16 UTCEPSS rescore
  42. 2026-06-10 13:33 UTCGHSA enrichment
  43. 2026-06-10 13:19 UTCEPSS rescore
  44. 2026-06-09 14:16 UTCGHSA enrichment
  45. 2026-06-08 14:15 UTCEPSS rescore
  46. 2026-06-08 09:57 UTCGHSA enrichment
  47. 2026-06-07 15:23 UTCEPSS rescore
  48. 2026-06-07 15:23 UTCEPSS rescore
  49. 2026-06-07 10:39 UTCGHSA enrichment
  50. 2026-06-06 13:45 UTCEPSS rescore
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  52. 2026-06-05 22:45 UTCEPSS rescore
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  74. 2026-05-22 21:16 UTCEPSS rescore
  75. 2026-05-22 21:16 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2019-25658?
CVE-2019-25658 is a medium vulnerability published on April 5, 2026. a-Mac Address Change 5.4 contains a local buffer overflow vulnerability that allows local attackers to crash the application by supplying oversized input to registration form fields. Attackers can paste 212 bytes of data into the 'Your Name', 'Your Company', or 'Register Code' fields and click the…
When was CVE-2019-25658 disclosed?
CVE-2019-25658 was first published in the National Vulnerability Database on April 5, 2026, with the most recent update on July 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2019-25658 actively exploited?
CVE-2019-25658 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 96.4% of all scored CVEs.
What is the CVSS score of CVE-2019-25658?
CVE-2019-25658 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2019-25658?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-25658, 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.

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