CVE-2018-25217

HIGHNVD 7.88.4▲
EchelonGraph scoreMEDIUM confidence

Score 8.4 from GitHub Security Advisory (severity: HIGH) published 2026-03-26. NVD baseline CVSS 7.8; sources differ by 0.6.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
8.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: None knownExposed: 0

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

PDF Explorer 1.5.66.2 contains a structured exception handler (SEH) overflow vulnerability that allows local attackers to execute arbitrary code by overwriting SEH records with malicious data. Attackers can craft a payload with buffer overflow, NSEH jump, and ROP gadget chains that execute when the Custom fields settings dialog processes the malicious input in the Label field.

CVSS v3
7.8
EG Score
8.4(medium)
EG Risk
42(Track)
EG Risk 42/100SSVC: 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
Severity84% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
13%
KEV
Not listed

Published

March 26, 2026

Last Modified

June 17, 2026

Advisory Details (4)

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

PDF Explorer 1.5.66.2 Structured Exception Handler Local Code Execution | Advisories | VulnCheck

https://www.vulncheck.com/advisories/pdf-explorer-structured-exception-handler-local-code-execution
generic
https://www.rttsoftware.com/files/PDFExplorerTrialSetup.zip
generic🟡 PoC Available

PDF Explorer 1.5.66.2 - Buffer Overflow (SEH) - Windows local Exploit

https://www.exploit-db.com/exploits/46016
generic

RTT Software - Organizing PDF and CHM documents has never been so easy!

http://www.rttsoftware.com/

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 22× 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. 2026-09-19 15:36 UTCEPSS rescore
  2. 2026-09-18 19:22 UTCEPSS rescore
  3. 2026-09-17 19:22 UTCEPSS rescore
  4. 2026-09-16 05:06 UTCEPSS rescore
  5. 2026-09-15 03:05 UTCEPSS rescore
  6. 2026-09-13 16:42 UTCEPSS rescore
  7. 2026-09-12 14:56 UTCEPSS rescore
  8. 2026-09-11 14:47 UTCEPSS rescore
  9. 2026-09-11 09:32 UTCEPSS rescore
  10. 2026-09-07 15:57 UTCEPSS rescore
  11. 2026-09-06 13:43 UTCEPSS rescore
  12. 2026-09-05 15:24 UTCEPSS rescore
  13. 2026-09-04 13:56 UTCEPSS rescore
  14. 2026-09-04 05:02 UTCEPSS rescore
  15. 2026-09-02 14:07 UTCEPSS rescore
  16. 2026-09-01 13:49 UTCEPSS rescore
  17. 2026-09-01 03:32 UTCEPSS rescore
  18. 2026-08-28 21:36 UTCEPSS rescore
  19. 2026-08-27 14:21 UTCEPSS rescore
  20. 2026-08-26 14:42 UTCEPSS rescore
  21. 2026-08-25 13:44 UTCEPSS rescore
  22. 2026-08-21 23:45 UTCEPSS rescore
  23. 2026-08-20 22:51 UTCEPSS rescore
  24. 2026-08-19 17:00 UTCEPSS rescore
  25. 2026-08-18 13:44 UTCEPSS rescore
Show 46 more
  1. 2026-08-17 13:43 UTCEPSS rescore
  2. 2026-08-16 14:51 UTCEPSS rescore
  3. 2026-08-16 10:09 UTCEG score recompute
  4. 2026-08-16 10:09 UTCGHSA enrichment
  5. 2026-08-16 02:10 UTCEPSS rescore
  6. 2026-08-15 01:26 UTCEPSS rescore
  7. 2026-08-14 19:30 UTCGHSA enrichment
  8. 2026-08-14 06:27 UTCEG score recompute
  9. 2026-08-14 06:27 UTCGHSA enrichment
  10. 2026-08-13 21:56 UTCEPSS rescore
  11. 2026-08-12 20:44 UTCEG score recompute
  12. 2026-08-12 20:44 UTCGHSA enrichment
  13. 2026-08-12 13:46 UTCEPSS rescore
  14. 2026-08-11 20:50 UTCEG score recompute
  15. 2026-08-11 20:50 UTCGHSA enrichment
  16. 2026-08-11 03:52 UTCEG score recompute
  17. 2026-08-11 03:52 UTCGHSA enrichment
  18. 2026-08-10 08:07 UTCGHSA enrichment
  19. 2026-08-09 19:03 UTCEG score recompute
  20. 2026-08-09 19:03 UTCGHSA enrichment
  21. 2026-08-09 13:43 UTCEPSS rescore
  22. 2026-08-09 06:00 UTCEG score recompute
  23. 2026-08-09 06:00 UTCGHSA enrichment
  24. 2026-08-08 16:32 UTCEPSS rescore
  25. 2026-08-08 05:28 UTCGHSA enrichment
  26. 2026-08-07 16:25 UTCEG score recompute
  27. 2026-08-07 16:25 UTCGHSA enrichment
  28. 2026-08-07 16:23 UTCEPSS rescore
  29. 2026-08-06 18:47 UTCEG score recompute
  30. 2026-08-06 18:47 UTCGHSA enrichment
  31. 2026-08-06 13:42 UTCEPSS rescore
  32. 2026-08-06 00:53 UTCEG score recompute
  33. 2026-08-06 00:53 UTCGHSA enrichment
  34. 2026-08-05 19:13 UTCEPSS rescore
  35. 2026-08-04 15:05 UTCEPSS rescore
  36. 2026-08-03 23:18 UTCEG score recompute
  37. 2026-08-03 23:18 UTCGHSA enrichment
  38. 2026-08-02 15:24 UTCEG score recompute
  39. 2026-08-02 15:24 UTCGHSA enrichment
  40. 2026-08-02 02:23 UTCEPSS rescore
  41. 2026-08-01 04:12 UTCEPSS rescore
  42. 2026-07-30 16:24 UTCEPSS rescore
  43. 2026-07-30 01:27 UTCEPSS rescore
  44. 2026-07-28 15:32 UTCEPSS rescore
  45. 2026-07-27 14:23 UTCEG score recompute
  46. 2026-07-27 14:23 UTCGHSA enrichment

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2018-25217?
CVE-2018-25217 is a high vulnerability published on March 26, 2026. PDF Explorer 1.5.66.2 contains a structured exception handler (SEH) overflow vulnerability that allows local attackers to execute arbitrary code by overwriting SEH records with malicious data. Attackers can craft a payload with buffer overflow, NSEH jump, and ROP gadget chains that execute when the…
When was CVE-2018-25217 disclosed?
CVE-2018-25217 was first published in the National Vulnerability Database on March 26, 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-2018-25217 actively exploited?
CVE-2018-25217 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 87.2% of all scored CVEs.
What is the CVSS score of CVE-2018-25217?
CVE-2018-25217 has a CVSS v3 base score of 7.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 8.4.
How do I remediate CVE-2018-25217?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-25217, 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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