CVE-2018-15993

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2022-05-14. NVD baseline CVSS 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
8.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 5%CVSS: 8.8Exploit: NoneExposed: 0

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

Adobe Acrobat and Reader versions 2019.008.20081 and earlier, 2019.008.20080 and earlier, 2019.008.20081 and earlier, 2017.011.30106 and earlier version, 2017.011.30105 and earlier version, 2015.006.30457 and earlier, and 2015.006.30456 and earlier have an use after free vulnerability. Successful exploitation could lead to arbitrary code execution.

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
46(Track)
EG Risk 46/100SSVC: 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
Severity88% × 45%
Exploitation5% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
91.1%
KEV
Not listed

Published

January 18, 2019

Last Modified

November 21, 2024

References (4)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 41× 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. 2026-07-23 14:15 UTCEPSS rescore
  2. 2026-07-23 14:15 UTCEPSS rescore
  3. 2026-07-23 01:34 UTCEG score recompute
  4. 2026-07-22 22:14 UTCEG score recompute
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  58. 2026-05-28 13:42 UTCEPSS rescore
  59. 2026-05-28 13:42 UTCEPSS rescore
  60. 2026-05-27 23:11 UTCEG score recompute
  61. 2026-05-27 23:11 UTCGHSA enrichment
  62. 2026-05-27 13:38 UTCEPSS rescore
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  66. 2026-05-26 07:17 UTCEPSS rescore
  67. 2026-05-26 07:17 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2018-15993?
CVE-2018-15993 is a high vulnerability published on January 18, 2019. Adobe Acrobat and Reader versions 2019.008.20081 and earlier, 2019.008.20080 and earlier, 2019.008.20081 and earlier, 2017.011.30106 and earlier version, 2017.011.30105 and earlier version, 2015.006.30457 and earlier, and 2015.006.30456 and earlier have an use after free vulnerability. Successful…
When was CVE-2018-15993 disclosed?
CVE-2018-15993 was first published in the National Vulnerability Database on January 18, 2019, 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-2018-15993 actively exploited?
CVE-2018-15993 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 91.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2018-15993?
CVE-2018-15993 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2018-15993?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-15993, 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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