CVE-2022-35289

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-10-11. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 9.8Exploit: NoneExposed: 0

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

A write-what-where condition in hermes caused by an integer overflow, prior to commit 5b6255ae049fa4641791e47fad994e8e8c4da374 allows attackers to potentially execute arbitrary code via crafted JavaScript. Note that this is only exploitable if the application using Hermes permits evaluation of untrusted JavaScript. Hence, most React Native applications are not affected.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
—
EPSS
56.8%
KEV
Not listed

Published

October 11, 2022

Last Modified

November 21, 2024

Advisory Details (2)

Auto-updated Jun 4, 2026
Patch available. Sources: github_commit.
generic

Facebook

https://www.facebook.com/security/advisories/CVE-2022-35289
github_commit Patch Available

commit 5b6255ae049f (facebook/hermes)

Patch available: facebook/hermes v0.12.0 (contains commit 5b6255ae049f)

https://github.com/facebook/hermes/commit/5b6255ae049fa4641791e47fad994e8e8c4da374

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 13× in last 7d / 50× 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. 2026-07-22 22:59 UTCEG score recompute
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Frequently asked(5)

What is CVE-2022-35289?
CVE-2022-35289 is a critical vulnerability published on October 11, 2022. A write-what-where condition in hermes caused by an integer overflow, prior to commit 5b6255ae049fa4641791e47fad994e8e8c4da374 allows attackers to potentially execute arbitrary code via crafted JavaScript. Note that this is only exploitable if the application using Hermes permits evaluation of…
When was CVE-2022-35289 disclosed?
CVE-2022-35289 was first published in the National Vulnerability Database on October 11, 2022, 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-2022-35289 actively exploited?
CVE-2022-35289 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 56.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2022-35289?
CVE-2022-35289 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2022-35289?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-35289, 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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