CVE-2018-9958

HIGHNVD 8.88.9▲
EchelonGraph scoreHIGH confidence

Score elevated to 8.9 because EPSS predicts 62% probability of exploitation within the next 30 days (99th percentile of EPSS-scored CVEs). NVD baseline CVSS 8.8 retained for reference. Confidence: see factors.

Triggered by: EPSS exploit prediction (continuous uplift above 30%)
Sources: epss, ghsa, nvd
Weaponized
8.9EG
EchelonGraph verdictMitigate this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 62%
  • Public exploit code is available (Metasploit, Exploit-DB (verified), epss top5pct, epss high, public exploit)
CISA-KEV: Not listedEPSS PROB: 62%CVSS: 8.8Exploit: Metasploit · Exploit-DB (verified) · epss top5pct · epss high · public exploitExposed services: Not assessed

A fix is referenced (a reference tagged "Patch", often a source commit), but no release containing it is confirmed — find the release that contains it; until it is applied, mitigate (WAF / firewall / segmentation).

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader 9.0.1.1049. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the handling of Text Annotations. When setting the point attribute, the process does not properly validate the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code under the context of the current process. Was ZDI-CAN-5620.

CVSS v3
8.8
EG Score
8.9HIGHhigh confidence
EG Risk
71
EG Risk 71/100CISA SSVC

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
Severity89% × 45%
Exploitation65% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track* or Attend at high (mission-essential systems).
Action: A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines at low or medium mission impact and sooner than that at high; until then, restrict network exposure of the affected system or apply the vendor's mitigation.
EPSS PROB
62%
EPSS %ILE
99th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* or Attend at high (mission-essential systems).

A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines at low or medium mission impact and sooner than that at high; until then, restrict network exposure of the affected system or apply the vendor's mitigation.

Exploitation public PoC (EG-KEV: weaponized) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

May 17, 2018

Last Modified

November 21, 2024

Advisory Details (4)

Auto-updated Aug 19, 2026
🔬 Proof of concept available. Fix referenced — no release confirmed yet.
generic

ZDI-18-342 - TrendAI™ Zero Day Initiative™ (ZDI)

https://zerodayinitiative.com/advisories/ZDI-18-342
generic

Security Bulletins | Foxit

https://www.foxitsoftware.com/support/security-bulletins.php
generic🟡 PoC Available

Foxit PDF Reader 9.0.1.1049 - Pointer Overwrite Use-After-Free (Metasploit) - Windows local Exploit

https://www.exploit-db.com/exploits/45269/
generic🟡 PoC Available

Foxit Reader 9.0.1.1049 - Remote Code Execution - Windows remote Exploit

https://www.exploit-db.com/exploits/44941/

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 5× in last 7d / 18× 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 106 total refreshes for this CVE.

  1. 2026-10-10 19:55 UTCEPSS rescore
  2. 2026-10-09 20:03 UTCEPSS rescore
  3. 2026-10-07 23:42 UTCEPSS rescore
  4. 2026-10-06 15:12 UTCEPSS rescore
  5. 2026-10-04 23:18 UTCEPSS rescore
  6. 2026-10-01 19:44 UTCEPSS rescore
  7. 2026-09-30 14:59 UTCEPSS rescore
  8. 2026-09-30 10:06 UTCEG score recompute
  9. 2026-09-26 15:53 UTCEPSS rescore
  10. 2026-09-24 13:59 UTCEPSS rescore
  11. 2026-09-23 13:42 UTCEPSS rescore
  12. 2026-09-21 20:27 UTCEPSS rescore
  13. 2026-09-18 19:22 UTCEPSS rescore
  14. 2026-09-17 19:22 UTCEPSS rescore
  15. 2026-09-15 03:05 UTCEPSS rescore
  16. 2026-09-15 03:05 UTCEPSS rescore
  17. 2026-09-11 14:48 UTCEPSS rescore
  18. 2026-09-11 09:32 UTCEPSS rescore
  19. 2026-09-06 13:44 UTCEPSS rescore
  20. 2026-09-04 13:56 UTCEPSS rescore
  21. 2026-09-02 14:07 UTCEPSS rescore
  22. 2026-08-30 19:13 UTCEPSS rescore
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  24. 2026-08-28 21:36 UTCEPSS rescore
  25. 2026-08-27 14:21 UTCEPSS rescore
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  1. 2026-08-26 14:42 UTCEPSS rescore
  2. 2026-08-24 14:11 UTCEPSS rescore
  3. 2026-08-21 23:45 UTCEPSS rescore
  4. 2026-08-20 22:51 UTCEPSS rescore
  5. 2026-08-19 17:00 UTCEPSS rescore
  6. 2026-08-18 13:44 UTCEPSS rescore
  7. 2026-08-16 02:10 UTCEPSS rescore
  8. 2026-08-15 01:26 UTCEPSS rescore
  9. 2026-08-13 21:56 UTCEPSS rescore
  10. 2026-08-12 13:47 UTCEPSS rescore
  11. 2026-08-07 16:23 UTCEPSS rescore
  12. 2026-08-04 15:05 UTCEPSS rescore
  13. 2026-07-30 16:24 UTCEPSS rescore
  14. 2026-07-30 01:27 UTCEPSS rescore
  15. 2026-07-28 15:32 UTCEPSS rescore
  16. 2026-07-26 14:51 UTCEPSS rescore
  17. 2026-07-25 14:14 UTCEPSS rescore
  18. 2026-07-25 14:14 UTCEPSS rescore
  19. 2026-07-24 14:14 UTCEPSS rescore
  20. 2026-07-24 14:14 UTCEPSS rescore
  21. 2026-07-23 14:15 UTCEPSS rescore
  22. 2026-07-23 14:15 UTCEPSS rescore
  23. 2026-07-23 01:38 UTCEG score recompute▲ 0.10
  24. 2026-07-22 22:18 UTCEG score recompute▼ 0.20
  25. 2026-07-22 14:05 UTCEPSS rescore
  26. 2026-07-21 15:22 UTCEPSS rescore
  27. 2026-07-20 17:04 UTCEPSS rescore
  28. 2026-07-20 17:04 UTCEPSS rescore
  29. 2026-07-15 16:55 UTCEPSS rescore
  30. 2026-07-13 22:27 UTCEPSS rescore
  31. 2026-07-13 06:10 UTCEPSS rescore
  32. 2026-07-12 05:43 UTCEPSS rescore
  33. 2026-07-09 19:06 UTCEPSS rescore
  34. 2026-07-08 15:11 UTCEPSS rescore
  35. 2026-07-08 15:11 UTCEPSS rescore
  36. 2026-07-07 13:42 UTCEPSS rescore
  37. 2026-07-07 13:42 UTCEPSS rescore
  38. 2026-07-06 02:20 UTCEPSS rescore
  39. 2026-07-04 06:28 UTCEPSS rescore
  40. 2026-07-04 06:28 UTCEPSS rescore
  41. 2026-07-01 15:03 UTCEPSS rescore
  42. 2026-07-01 15:03 UTCEPSS rescore
  43. 2026-06-30 23:20 UTCEPSS rescore
  44. 2026-06-30 23:20 UTCEPSS rescore
  45. 2026-06-28 04:53 UTCEPSS rescore
  46. 2026-06-28 04:53 UTCEPSS rescore
  47. 2026-06-27 03:06 UTCEPSS rescore
  48. 2026-06-27 03:06 UTCEPSS rescore
  49. 2026-06-25 13:47 UTCEPSS rescore
  50. 2026-06-25 13:47 UTCEPSS rescore
  51. 2026-06-24 14:02 UTCEPSS rescore
  52. 2026-06-24 14:02 UTCEPSS rescore
  53. 2026-06-23 21:30 UTCEPSS rescore
  54. 2026-06-23 21:30 UTCEPSS rescore
  55. 2026-06-21 01:57 UTCEPSS rescore
  56. 2026-06-21 01:57 UTCEPSS rescore
  57. 2026-06-18 17:50 UTCEPSS rescore
  58. 2026-06-18 17:50 UTCEPSS rescore
  59. 2026-06-17 17:50 UTCEPSS rescore
  60. 2026-06-16 17:50 UTCEPSS rescore
  61. 2026-06-16 17:50 UTCEPSS rescore
  62. 2026-06-15 17:45 UTCEPSS rescore
  63. 2026-06-13 22:58 UTCEPSS rescore
  64. 2026-06-12 23:09 UTCEPSS rescore
  65. 2026-06-12 23:09 UTCEPSS rescore
  66. 2026-06-10 22:16 UTCEPSS rescore
  67. 2026-06-06 13:45 UTCEPSS rescore
  68. 2026-06-06 13:45 UTCEPSS rescore
  69. 2026-06-05 22:45 UTCEPSS rescore
  70. 2026-06-05 22:45 UTCEPSS rescore
  71. 2026-06-04 13:10 UTCEPSS rescore
  72. 2026-06-04 13:10 UTCEPSS rescore
  73. 2026-06-01 13:50 UTCEPSS rescore
  74. 2026-05-31 22:29 UTCEPSS rescore
  75. 2026-05-31 22:29 UTCEPSS rescore

Publicly available exploits

(4 references)

Public exploit code is referenced for this CVE (1 Metasploit module, 3 Exploit-DB entries). Defenders should treat patch urgency accordingly.

  • Exploit-DBEDB-45269✓ verified
    Published Aug 27, 2018

    Foxit PDF Reader 9.0.1.1049 - Pointer Overwrite Use-After-Free (Metasploit)

    Open source ↗
  • Metasploitexploit/windows/fileformat/foxit_reader_uaf✓ verified
    Published Aug 23, 2018

    Foxit PDF Reader Pointer Overwrite UAF

    Open source ↗
  • Exploit-DBEDB-44941✓ verified
    Published Jun 25, 2018

    Foxit Reader 9.0.1.1049 - Remote Code Execution

    Open source ↗
  • Exploit-DBEDB-49116
    Published Nov 27, 2020

    Foxit Reader 9.0.1.1049 - Arbitrary Code Execution

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2018-9958?
CVE-2018-9958 is a high vulnerability published on May 17, 2018. This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader 9.0.1.1049. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the…
When was CVE-2018-9958 disclosed?
CVE-2018-9958 was first published on May 17, 2018, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2018-9958 actively exploited?
CVE-2018-9958 is not currently on CISA's Known Exploited Vulnerabilities catalog. EchelonGraph's EG-KEV model classifies it as weaponized: a functional public exploit exists. FIRST EPSS estimates a 62% probability of exploitation in the next 30 days (99th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2018-9958?
CVE-2018-9958 has a CVSS v3 base score of 8.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 8.9 (HIGH).
How do I remediate CVE-2018-9958?
A fix for CVE-2018-9958 is referenced (a reference tagged "Patch", often a source commit), but EchelonGraph has no release containing it on record. Check that reference and the vendor's advisory for a release that contains the fix and update to it; until then, restrict network exposure of the affected system or apply the vendor's mitigation.

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