CVE-2018-25273

MEDIUMNVD 6.26.2—
EchelonGraph scoreMEDIUM confidence

Score 6.2 from GitHub Security Advisory published 2026-04-27. NVD baseline CVSS 6.2; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
6.2EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.2Exploit: Elevated riskExposed: 0

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

CrossFont 7.5 contains a buffer overflow vulnerability that allows local attackers to crash the application by submitting an oversized payload in the License Key field. Attackers can generate a malicious file containing 4000 bytes of data, paste it into the License Key input field, and trigger an application crash when processing the input.

CVSS v3
6.2
EG Score
6.2(medium)
EG Risk
44(Track)
EG Risk 44/100SSVC: 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
Severity62% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
3%
KEV
Not listed

Published

April 26, 2026

Last Modified

April 27, 2026

Advisory Details (2)

Auto-updated Aug 2, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic

CrossFont 7.5 Denial of Service via License Key Field | Advisories | VulnCheck

https://www.vulncheck.com/advisories/crossfont-denial-of-service-via-license-key-field
generic🟡 PoC Available

CrossFont 7.5 - Denial of Service (PoC) - Windows_x86 dos Exploit

https://www.exploit-db.com/exploits/45494

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 5× in last 7d / 24× 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 209 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2018-25273?
CVE-2018-25273 is a medium vulnerability published on April 26, 2026. CrossFont 7.5 contains a buffer overflow vulnerability that allows local attackers to crash the application by submitting an oversized payload in the License Key field. Attackers can generate a malicious file containing 4000 bytes of data, paste it into the License Key input field, and trigger an…
When was CVE-2018-25273 disclosed?
CVE-2018-25273 was first published in the National Vulnerability Database on April 26, 2026, with the most recent update on April 27, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2018-25273 actively exploited?
CVE-2018-25273 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 97.4% of all scored CVEs.
What is the CVSS score of CVE-2018-25273?
CVE-2018-25273 has a CVSS v3 base score of 6.2 (NVD).
How do I remediate CVE-2018-25273?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-25273, 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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