CVE-2023-4427

HIGHNVD 8.18.2▲
EchelonGraph scoreHIGH confidence

Score elevated to 8.2 because EPSS predicts 34% probability of exploitation within the next 30 days (98th percentile of EPSS-scored CVEs). NVD baseline CVSS 8.1 retained for reference. Confidence: see factors.

Triggered by: EPSS exploit prediction ≥85%
Sources: epss, ghsa, nvd
Elevated
8.2EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 48%CVSS: 8.1Exploit: Elevated riskExposed services: Not assessed

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

Out of bounds memory access in V8 in Google Chrome prior to 116.0.5845.110 allowed a remote attacker to perform an out of bounds memory read via a crafted HTML page. (Chromium security severity: High)

CVSS v3
8.1
Vendor severity
HIGHper Google (Chromium)Vendor's own band, not a CVSS rating — advisory text: (Chromium security severity: High)
EG Score
8.2HIGHhigh confidence
EG Risk
53
EG Risk 53/100CISA 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
Severity82% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
48%
EPSS %ILE
98th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). 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

August 23, 2023

Last Modified

June 17, 2026

Advisory Details (8)

Auto-updated Sep 16, 2026
No patch confirmed yet.
generic

Chrome Releases: Stable Channel Update for Desktop

https://chromereleases.googleblog.com/2023/08/chrome-desktop-stable-update.html
generic

Locked Out | Packet Storm

http://packetstormsecurity.com/files/174951/Chrome-ReduceJSLoadPropertyWithEnumeratedKey-Out-Of-Bounds-Access.html
generic

[SECURITY] [DSA 5483-1] chromium security update

https://www.debian.org/security/2023/dsa-5483
generic

Chromium, Google Chrome, Microsoft Edge: Multiple Vulnerabilities (GLSA 202401-34) — Gentoo security

https://security.gentoo.org/glsa/202401-34
generic

[SECURITY] Fedora 37 Update: chromium-117.0.5938.88-1.fc37 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/[email protected]/message/KUQ7CTX3W372X3UY56VVNAHCH6H2F4X3/
generic

[SECURITY] Fedora 38 Update: chromium-117.0.5938.62-1.fc38 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/[email protected]/message/6T655QF7CQ3DYAMPFV7IECQYGDEUIVVT/
generic

[SECURITY] Fedora 39 Update: chromium-116.0.5845.179-1.fc39 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/[email protected]/message/27NR3KG553CG6LGPMP6SHWEVHTYPL6RC/
generic
https://crbug.com/1470668

Vendor Advisories for CVE-2023-4427(1)

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

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
chromium100.0.4896.127-1 ... 99.0.4844.84-1~deb11u1 (130 versions)116.0.5845.110-1~deb11u1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
chromium113.0.5672.126-1 ... 116.0.5845.96-2 (28 versions)116.0.5845.110-1~deb12u1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
chromium—116.0.5845.110-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
chromium—116.0.5845.110-1—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 27× 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 148 total refreshes for this CVE.

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

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2023-4427?
CVE-2023-4427 is a high vulnerability published on August 23, 2023. Out of bounds memory access in V8 in Google Chrome prior to 116.0.5845.110 allowed a remote attacker to perform an out of bounds memory read via a crafted HTML page. (Chromium security severity: High)
When was CVE-2023-4427 disclosed?
CVE-2023-4427 was first published on August 23, 2023, 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-2023-4427 actively exploited?
CVE-2023-4427 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 48% probability of exploitation in the next 30 days (98th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2023-4427?
CVE-2023-4427 has a CVSS v3 base score of 8.1 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 8.2 (HIGH).
How do I remediate CVE-2023-4427?
No fix for CVE-2023-4427 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2023-4427 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2023-4427

Explore →

Is Your Infrastructure Affected by CVE-2023-4427?

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

Book a Demo →Browse All CVEs