CVE-2020-10018

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory published 2022-05-24. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 5.0%CVSS: 9.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

WebKitGTK through 2.26.4 and WPE WebKit through 2.26.4 (which are the versions right before 2.28.0) contains a memory corruption issue (use-after-free) that may lead to arbitrary code execution. This issue has been fixed in 2.28.0 with improved memory handling.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
51
EG Risk 51/100CISA 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
Severity98% × 45%
Exploitation5% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track* or Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
5.0%
EPSS %ILE
91st
KEV
Not listed

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

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact total (CVSS ≥ 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

March 2, 2020

Last Modified

November 21, 2024

Advisory Details (7)

Auto-updated Oct 4, 2026
Patch available.
generic

[SECURITY] [DSA 4641-1] webkit2gtk security update

https://www.debian.org/security/2020/dsa-4641
generic

WebKitGTK and WPE WebKit Security Advisory WSA-2020-0003

https://wpewebkit.org/security/WSA-2020-0003.html
generic

WebKitGTK and WPE WebKit Security Advisory WSA-2020-0003 - The WebKitGTK Project

https://webkitgtk.org/security/WSA-2020-0003.html
generic

WebKitGTK+: Multiple vulnerabilities (GLSA 202006-08) — Gentoo security

https://security.gentoo.org/glsa/202006-08
generic

[SECURITY] Fedora 30 Update: webkit2gtk3-2.28.0-5.fc30 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GLERWAS2LL7SX2GHA2DDZ2PL3QC5OHIF/
generic

[SECURITY] Fedora 31 Update: webkit2gtk3-2.28.0-6.fc31 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DOR5LPL4UASVAR76EIHCL4O2KGDWGC6K/
generic

Bug Access Denied

https://bugs.webkit.org/show_bug.cgi?id=204342#c21

Vendor Advisories for CVE-2020-10018(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(3)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntuwebkit2gtk-driver (2.28.0-0ubuntu0.19.10.2) @ eoan2026-05-27ubuntu
redhatwebkit2gtk3-0:2.28.4-1.el82020-11-04redhat
redhatwebkitgtk4-0:2.28.2-2.el72020-09-29redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(9 across 5 ecosystems)
Debian:11(2)
PackageVulnerable rangeFix by version rangeDependents
webkit2gtk—
  • every version up to 2.28.0-2: fixed in 2.28.0-2
—
wpewebkit—
  • every version up to 2.28.0-1: fixed in 2.28.0-1
—
Debian:12(2)
PackageVulnerable rangeFix by version rangeDependents
webkit2gtk—
  • every version up to 2.28.0-2: fixed in 2.28.0-2
—
wpewebkit—
  • every version up to 2.28.0-1: fixed in 2.28.0-1
—
Debian:13(2)
PackageVulnerable rangeFix by version rangeDependents
webkit2gtk—
  • every version up to 2.28.0-2: fixed in 2.28.0-2
—
wpewebkit—
  • every version up to 2.28.0-1: fixed in 2.28.0-1
—
Debian:14(2)
PackageVulnerable rangeFix by version rangeDependents
webkit2gtk—
  • every version up to 2.28.0-2: fixed in 2.28.0-2
—
wpewebkit—
  • every version up to 2.28.0-1: fixed in 2.28.0-1
—
Debian:10(1)
PackageVulnerable rangeFix by version rangeDependents
webkit2gtk2.24.2-1 ... 2.26.4-1~deb10u1 (33 versions)
  • every version up to 2.26.4-1~deb10u2: fixed in 2.26.4-1~deb10u2
—

Weakness Classification(2)

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

Additional Vendor Advisories

(1)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 5× in last 7d / 25× 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 161 total refreshes for this CVE.

  1. 2026-10-05 17:39 UTCEPSS rescore
  2. 2026-10-04 23:18 UTCEPSS rescore
  3. 2026-10-03 14:22 UTCEPSS rescore
  4. 2026-09-30 14:59 UTCEPSS rescore
  5. 2026-09-30 10:31 UTCEG score recompute
  6. 2026-09-27 13:40 UTCEPSS rescore
  7. 2026-09-27 09:02 UTCOSV refresh
  8. 2026-09-26 15:54 UTCEPSS rescore
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  11. 2026-09-22 14:43 UTCEPSS rescore
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  22. 2026-09-11 09:32 UTCEPSS rescore
  23. 2026-09-07 18:21 UTCOSV refresh
  24. 2026-09-07 15:57 UTCEPSS rescore
  25. 2026-09-06 13:44 UTCEPSS rescore
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  1. 2026-09-05 15:24 UTCEPSS rescore
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  5. 2026-09-01 03:32 UTCEPSS rescore
  6. 2026-08-30 19:14 UTCEPSS rescore
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  8. 2026-08-28 21:37 UTCEPSS rescore
  9. 2026-08-27 14:21 UTCEPSS rescore
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  11. 2026-08-25 13:45 UTCEPSS rescore
  12. 2026-08-21 03:53 UTCOSV refresh
  13. 2026-08-20 22:51 UTCEPSS rescore
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  25. 2026-08-06 13:43 UTCEPSS rescore
  26. 2026-08-05 19:14 UTCEPSS rescore
  27. 2026-08-05 19:10 UTCOSV refresh
  28. 2026-08-04 15:06 UTCEPSS rescore
  29. 2026-08-04 10:34 UTCEPSS rescore
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  31. 2026-08-02 02:23 UTCEPSS rescore
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  39. 2026-07-23 14:15 UTCEPSS rescore
  40. 2026-07-23 01:48 UTCEG score recompute
  41. 2026-07-22 22:31 UTCEG score recompute
  42. 2026-07-22 14:05 UTCEPSS rescore
  43. 2026-07-21 15:22 UTCEPSS rescore
  44. 2026-07-21 15:22 UTCEPSS rescore
  45. 2026-07-20 17:04 UTCEPSS rescore
  46. 2026-07-19 18:18 UTCOSV refresh
  47. 2026-07-19 14:28 UTCEPSS rescore
  48. 2026-07-19 14:28 UTCEPSS rescore
  49. 2026-07-19 02:26 UTCEPSS rescore
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  67. 2026-07-04 06:28 UTCEPSS rescore
  68. 2026-07-02 07:47 UTCOSV refresh
  69. 2026-07-01 15:03 UTCEPSS rescore
  70. 2026-07-01 15:03 UTCEPSS rescore
  71. 2026-06-30 23:20 UTCEPSS rescore
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  73. 2026-06-29 14:04 UTCEPSS rescore
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  75. 2026-06-28 14:05 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2020-10018?
CVE-2020-10018 is a critical vulnerability published on March 2, 2020. WebKitGTK through 2.26.4 and WPE WebKit through 2.26.4 (which are the versions right before 2.28.0) contains a memory corruption issue (use-after-free) that may lead to arbitrary code execution. This issue has been fixed in 2.28.0 with improved memory handling.
When was CVE-2020-10018 disclosed?
CVE-2020-10018 was first published on March 2, 2020, 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-2020-10018 actively exploited?
CVE-2020-10018 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 5.0% probability of exploitation in the next 30 days (91st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2020-10018?
CVE-2020-10018 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2020-10018?
A fix for CVE-2020-10018 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2020-10018 are linked in the Vendor Advisories panel on this page.

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