Page generated: 09 Nov 2026, 05:14 UTC
← Dashboard

CVE-2025-62593

Ray is an AI compute engine. Prior to version 2.52.0, developers working with Ray as a development tool can be exploited via a critical RCE vulnerability exploitable via Firefox and Safari. This vulnerability is due to an insufficient guard against browser-based attacks, as the c…

Read full description
Ray is an AI compute engine. Prior to version 2.52.0, developers working with Ray as a development tool can be exploited via a critical RCE vulnerability exploitable via Firefox and Safari. This vulnerability is due to an insufficient guard against browser-based attacks, as the current defense uses the User-Agent header starting with the string "Mozilla" as a defense mechanism. This defense is insufficient as the fetch specification allows the User-Agent header to be modified. Combined with a DNS rebinding attack against the browser, and this vulnerability is exploitable against a developer running Ray who inadvertently visits a malicious website, or is served a malicious advertisement (malvertising). This issue has been patched in version 2.52.0.
CVSS 9.4 (CRITICAL) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE
0.0/10
REALITY · THREAT PRIORITY
8.7/10
General review priority; not probability

Evidence confidence: Exploitation recorded

Why this priority?
  • Recorded exploitation baseline: +7.00
  • Technical severity: CVSS 9.4: +1.41
  • Fresh EPSS: 60.15%: +0.30

General review priority, not probability, victim count or asset-specific risk. A range covers missing CVSS/EPSS inputs within the current evidence state.

Sources: 11 documents and public datasets.

Hype components

Headline sample (25%)
0/100
Press, 30 days (60%)
0/100
Grounded branding (15%)
0/100
HYPE TOTAL0/100

Sources and documents

Recorded Future
Press · 08 Sep 2026, 07:00 · August 2026 CVE Landscape - Recorded Future
Recorded Future
Press · 08 Sep 2026, 07:00 · Panorama des CVE d'août 2026​​ - Recorded Future
Machine Brief
Press · 23 Aug 2026, 07:00 · Ray CVE-2025-62593: RondoDox Botnet Exploited Flaw Before CVE Existed - Machine Brief
Startup Fortune
Press · 20 Aug 2026, 07:00 · CISA Gives Agencies Three Days to Patch a Critical Flaw in Ray - Startup Fortune
SC Media
Press · 19 Aug 2026, 07:00 · Critical vulnerability in Ray framework allows remote code execution - SC Media
See all 11 source documents
Field Effect
Press · 19 Aug 2026, 07:00 · CISA flags actively exploited Ray vulnerability - Field Effect
The Hacker News
Press · 18 Aug 2026, 07:00 · CISA Flags Actively Exploited Ray Flaw That Can Trigger Browser-Based RCE - The Hacker News
Resecurity
Press · 18 Aug 2026, 07:00 · Ray CVE-2025-62593: Critical Browser-Driven RCE via DNS Rebinding - Resecurity
The Next Web
Press · 18 Aug 2026, 07:00 · CISA orders a three-day patch after a flaw in the Ray AI framework comes under active attack - The Next Web
Security Affairs
Press · 18 Aug 2026, 07:00 · U.S. CISA adds a Ray-Project Ray flaw to its Known Exploited Vulnerabilities catalog - Security Affairs
Bitsight
Press · 11 Mar 2026, 07:00 · RondoDox Botnet: From Zero to 174 Exploited Vulnerabilities - Bitsight

Score evolution

● Hype   ● Reality

Earlier evidence-support scores are retained in history; this chart shows only the current priority definition.

First record: hype 0.0 · reality 8.7 (2026-11-02 15:14). The curve appears once the score changes.

Public exploit evidence

1

Public exploit entries / repo candidates

See 1 repos with metrics
RepositoryStarsForksLanguageUpdated
Boreas37/CVE-2025-62593-PoC20Python18 Aug 2026, 20:47
Evidence context and dated references

Reality is general threat/review priority, combining observed exploitation, CVSS severity and fresh EPSS. Evidence confidence is separate. This is not calibrated risk, a victim count or an asset-specific assessment. A range reflects missing numeric inputs.

Evidence in context

Confidence in exploitation evidence
Exploitation recorded
Priority basis
Recorded exploitation; CVSS 9.4; EPSS 60.2%
Attention, last 30 days
0 distinct story titles; 0 press documents; 0 publisher domains.
Technical potential
network access, no prior privileges, passive user interaction.
Observed activity
Exploitation recorded in CISA KEV.
Known scale
Not quantified.
Evidence confidence basis
Trusted exploitation confirmation

Score evaluated: 2026-11-05 13:59:44.473516+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
Published
26 Nov 2025, 22:28
First press mention
11 Mar 2026, 07:00
Added to the CISA KEV catalog
17 Aug 2026, 00:00
Latest press mention
08 Sep 2026, 07:00
Score calculated
05 Nov 2026, 13:59
PoCs on GitHub
1 repositories