Technology · Meta
Meta Hermes vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 4 vulnerabilities in Meta Hermes: 0 in the last 7 days and 0 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2021-24037, was published on 24 May 2022.
- Last 7 days
- 0
- Last 90 days
- 0
- Critical, all time
- 0
- Exploited in the wild
- 0
About Meta Hermes
JavaScript engine that optimizes performance by compiling source code to bytecode.
Latest Meta Hermes vulnerabilities
- CVE-2021-24037: Meta Hermes JavaScript engine use after freelowCVSS 3.1EPSS 1.8%
- CVE-2020-1915: Meta Hermes out-of-bounds read in JavaScript interpreterlowCVSS 3.1EPSS 1.6%
- CVE-2020-1914: Facebook Hermes out-of-bounds read in SaveGeneratorLonglowCVSS 3.1
- CVE-2020-1913: Facebook Hermes signed to unsigned conversion errorlowCVSS 3.1EPSS 1.2%
Most severe Meta Hermes vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2021-24037: Meta Hermes JavaScript engine use after freelowCVSS 3.1EPSS 1.8%
- CVE-2020-1915: Meta Hermes out-of-bounds read in JavaScript interpreterlowCVSS 3.1EPSS 1.6%
- CVE-2020-1913: Facebook Hermes signed to unsigned conversion errorlowCVSS 3.1EPSS 1.2%
- CVE-2020-1914: Facebook Hermes out-of-bounds read in SaveGeneratorLonglowCVSS 3.1
Vulnerabilities per week
Nothing was published in the last eight weeks. The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 | |
| 28 Sep 2026 | 0 | 0 | |
| 5 Oct 2026 | 0 | 0 | |
| 12 Oct 2026 | 0 | 0 | |
| 19 Oct 2026 | 0 | 0 | |
| 26 Oct 2026 | 0 | 0 | |
| 2 Nov 2026 | 0 | 0 | |
| 9 Nov 2026 | 0 | 0 |
Embed a badge
A live badge for a README, a status page or an internal wiki: how many Meta Hermes vulnerabilities were published in the last 7 days and how many of them are critical, refreshed hourly.
[](https://junglewise.ai/threats/technologies/hermes)<a href="https://junglewise.ai/threats/technologies/hermes"><img src="https://junglewise.ai/threats/technologies/hermes/badge.svg" alt="Meta Hermes vulnerabilities" /></a>How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/hermes.json, and this page as text at https://junglewise.ai/threats/technologies/hermes.md, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "Meta Hermes vulnerabilities", https://junglewise.ai/threats/technologies/hermes, 12 November 2026.