CVE-2026-18622

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.5 under NVD CVSS v3. EPSS exploit probability: 0.1%, top 98% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
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: None knownExposed: 0

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

Foxit PDF Editor/Reader inconsistently alerts users when signature fields are abnormally modified, including alterations to appearance, coordinates, or field duplication. This may mislead users into trusting tampered documents, since the UI cannot accurately reflect the actual integrity status of signatures.

CVSS v3
5.5
EG Score
5.5(medium)
EG Risk
25(Track)
EG Risk 25/100SSVC: 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%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
2%
KEV
Not listed

Published

August 13, 2026

Last Modified

September 10, 2026

Advisory Details (1)

Auto-updated Aug 13, 2026
No patch confirmed yet.
generic

Security Bulletins | Foxit

https://www.foxit.com/support/security-bulletins.html

Vendor Advisories for CVE-2026-18622(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 18× in last 7d / 79× 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 105 total refreshes for this CVE.

  1. 2026-09-19 01:02 UTCEG score recompute
  2. 2026-09-19 01:02 UTCGHSA enrichment
  3. 2026-09-18 19:27 UTCEPSS rescore
  4. 2026-09-18 02:50 UTCEG score recompute
  5. 2026-09-18 02:50 UTCGHSA enrichment
  6. 2026-09-17 04:40 UTCEG score recompute
  7. 2026-09-17 04:40 UTCGHSA enrichment
  8. 2026-09-16 14:07 UTCEPSS rescore
  9. 2026-09-16 06:30 UTCEG score recompute
  10. 2026-09-16 06:30 UTCGHSA enrichment
  11. 2026-09-16 05:14 UTCEPSS rescore
  12. 2026-09-15 08:20 UTCEG score recompute
  13. 2026-09-15 08:20 UTCGHSA enrichment
  14. 2026-09-14 10:10 UTCEG score recompute
  15. 2026-09-14 10:10 UTCGHSA enrichment
  16. 2026-09-13 16:46 UTCEPSS rescore
  17. 2026-09-13 11:31 UTCEG score recompute
  18. 2026-09-13 11:31 UTCGHSA enrichment
  19. 2026-09-12 15:00 UTCEPSS rescore
  20. 2026-09-12 13:21 UTCGHSA enrichment
  21. 2026-09-11 15:11 UTCEG score recompute
  22. 2026-09-11 15:11 UTCGHSA enrichment
  23. 2026-09-11 14:52 UTCEPSS rescore
  24. 2026-09-11 09:36 UTCEPSS rescore
  25. 2026-09-10 17:01 UTCEG score recompute▲ 0.80
Show 75 more
  1. 2026-09-10 17:01 UTCGHSA enrichment
  2. 2026-09-10 17:00 UTCNVD updateCVSS v3 → 5.5
  3. 2026-09-10 09:34 UTCEPSS rescore
  4. 2026-09-10 03:18 UTCGHSA enrichment
  5. 2026-09-09 05:08 UTCEG score recompute
  6. 2026-09-09 05:08 UTCGHSA enrichment
  7. 2026-09-08 22:00 UTCEPSS rescore
  8. 2026-09-07 19:09 UTCEG score recompute
  9. 2026-09-07 19:09 UTCGHSA enrichment
  10. 2026-09-07 16:01 UTCEPSS rescore
  11. 2026-09-06 20:59 UTCEG score recompute
  12. 2026-09-06 20:59 UTCGHSA enrichment
  13. 2026-09-06 13:47 UTCEPSS rescore
  14. 2026-09-05 22:48 UTCEG score recompute
  15. 2026-09-05 22:48 UTCGHSA enrichment
  16. 2026-09-05 00:38 UTCEG score recompute
  17. 2026-09-05 00:38 UTCGHSA enrichment
  18. 2026-09-04 05:06 UTCEPSS rescore
  19. 2026-09-03 23:15 UTCGHSA enrichment
  20. 2026-09-03 00:01 UTCEG score recompute
  21. 2026-09-03 00:01 UTCGHSA enrichment
  22. 2026-09-02 14:11 UTCEPSS rescore
  23. 2026-09-02 01:50 UTCEG score recompute
  24. 2026-09-02 01:50 UTCGHSA enrichment
  25. 2026-09-01 13:53 UTCEPSS rescore
  26. 2026-09-01 04:39 UTCEPSS rescore
  27. 2026-09-01 03:01 UTCGHSA enrichment
  28. 2026-08-31 04:50 UTCEG score recompute
  29. 2026-08-31 04:50 UTCGHSA enrichment
  30. 2026-08-30 19:17 UTCEPSS rescore
  31. 2026-08-30 06:40 UTCEG score recompute
  32. 2026-08-30 06:40 UTCGHSA enrichment
  33. 2026-08-30 01:22 UTCEPSS rescore
  34. 2026-08-29 08:24 UTCEG score recompute
  35. 2026-08-29 08:24 UTCGHSA enrichment
  36. 2026-08-28 21:41 UTCEPSS rescore
  37. 2026-08-27 16:25 UTCEG score recompute
  38. 2026-08-27 16:25 UTCGHSA enrichment
  39. 2026-08-27 14:25 UTCEPSS rescore
  40. 2026-08-26 17:15 UTCGHSA enrichment
  41. 2026-08-26 13:55 UTCGHSA enrichment
  42. 2026-08-25 15:45 UTCEG score recompute
  43. 2026-08-25 15:45 UTCGHSA enrichment
  44. 2026-08-25 13:48 UTCEPSS rescore
  45. 2026-08-24 17:35 UTCEG score recompute
  46. 2026-08-24 17:35 UTCGHSA enrichment
  47. 2026-08-23 19:26 UTCGHSA enrichment
  48. 2026-08-22 21:16 UTCEG score recompute
  49. 2026-08-22 21:16 UTCGHSA enrichment
  50. 2026-08-21 23:49 UTCEPSS rescore
  51. 2026-08-21 23:03 UTCGHSA enrichment
  52. 2026-08-21 00:52 UTCEG score recompute
  53. 2026-08-21 00:52 UTCGHSA enrichment
  54. 2026-08-20 22:55 UTCEPSS rescore
  55. 2026-08-20 02:42 UTCEG score recompute
  56. 2026-08-20 02:42 UTCGHSA enrichment
  57. 2026-08-19 17:03 UTCEPSS rescore
  58. 2026-08-19 04:29 UTCGHSA enrichment
  59. 2026-08-18 06:15 UTCEG score recompute
  60. 2026-08-18 06:15 UTCGHSA enrichment
  61. 2026-08-17 13:47 UTCEPSS rescore
  62. 2026-08-17 08:05 UTCEG score recompute
  63. 2026-08-17 08:05 UTCGHSA enrichment
  64. 2026-08-16 14:56 UTCEPSS rescore
  65. 2026-08-16 09:55 UTCEG score recompute
  66. 2026-08-16 09:55 UTCGHSA enrichment
  67. 2026-08-16 02:14 UTCEPSS rescore
  68. 2026-08-15 11:46 UTCEG score recompute
  69. 2026-08-15 11:46 UTCGHSA enrichment
  70. 2026-08-15 01:30 UTCEPSS rescore
  71. 2026-08-14 13:36 UTCEG score recompute
  72. 2026-08-14 13:36 UTCGHSA enrichment
  73. 2026-08-13 22:00 UTCEPSS rescore
  74. 2026-08-13 15:26 UTCEG score recompute
  75. 2026-08-13 15:26 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-18622?
CVE-2026-18622 is a medium vulnerability published on August 13, 2026. Foxit PDF Editor/Reader inconsistently alerts users when signature fields are abnormally modified, including alterations to appearance, coordinates, or field duplication. This may mislead users into trusting tampered documents, since the UI cannot accurately reflect the actual integrity status of…
When was CVE-2026-18622 disclosed?
CVE-2026-18622 was first published in the National Vulnerability Database on August 13, 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-2026-18622 actively exploited?
CVE-2026-18622 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 97.6% of all scored CVEs.
What is the CVSS score of CVE-2026-18622?
CVE-2026-18622 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-18622?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-18622, 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-2026-18622

Explore →

Is Your Infrastructure Affected by CVE-2026-18622?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs