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CVE-2025-30165

INDEX BUILT · 2026-09-20

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Remote Code Execution Vulnerability in vLLM Multi-Node Cluster Configuration

CVE-2025-301654 of 4 sources documented this
22

rank 22 = 0 + 20 + 0 + 2 + 0

rank@v1 · backlog

Someone is already using it

CISA KEV catalog · public proof-of-concept · FIRST EPSS

EPSS 0.00479  ·  without this subject the record ranks 22

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 8.0, from the CNA  ·  without this subject the record ranks 2

It is getting worse, not staying still

FIRST EPSS series, rescorings and bad loads removed

no persisting rise in 365 days  ·  without this subject the record ranks 22

How much of the world it touches

NVD CPE configurations

1 product in the CPE ranges  ·  without this subject the record ranks 20

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 22

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$23,900over the next 30 days, if this record is yours
Movementno material movementthe record holds only daily drift and scoring model releases
Basisassumeda published average, not your estate

$23,900 = $4.99M incident cost x 1 exposure x 0.00479 likelihood

udv@v1 · unaudited · wrong for you until you say what you run

$4.99M is the cost of a breach that happened, from IBM Cost of a Data Breach Report 2026, global average. It is not the value of any asset of yours. That average already covers breaches of every severity, so scaling it by exposure understates a partial-impact record. That is an assumption, not a measurement. Your own asset value goes in the decision record.

Hindsight · the state

0.00479EPSSNOT IN KEVas of 2026-09-20
Severity8 HIGHreceipt
Harmtotal lossreceipt
Exploitationnone in held sources
Defenseno fix version held
Movementdoubled within 72hreceipt
PLATEAU10Minimal movement since 2025-05-07, 490 days at 0.00, as of 2026-09-09. arc-rules@v1

Foresight · where to check next

MicrosoftMicrosoftCVE-2023-43208CVE-2022-31199CVE-2021-3546430165

This record is one instance of CWE-502, deserialization of untrusted data. The index holds 3288 prior instances of this class, 76 KEV-listed. The nearest of its KEV-listed records are drawn beside this. taxonomy@v1

Full pattern panel

Prior records in this weakness class. Each is its own record, dated and receipted.
Color is a claim, not decoration:the hostile worldthe defenseno signalspoke length is how much of the record matches, not how bad it is

Running vllm-project vllm? Check your version

A deterministic range check against the ranges this record publishes. It tells you where a version sits in the record, not whether your deployment is exploitable. No account needed.

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Harm, if it fires from the vector and the weakness

Written for the ticket you're about to file.

Reachreachable from an adjacent network · low privileges required · no user interaction · low attack complexityreceipt
ImpactComplete confidentiality, integrity and availability lossreceipt
Scored fromCVSS v3.1 · the CNA's vectorreceipt
Weakness classCWE-502 Deserialization of Untrusted Datareceipt
Published consequencesCWE-502: Integrity: Modify Application Data, Unexpected State; Availability: DoS: Resource Consumption (CPU); Other: Varies by Context[email protected]

CISA KEV & Federal Remediation Deadline from the record and CISA

The fix, and how long it's been waiting.

Fixed inNo fix version in held sources, as the index stood on 9 Sep 2026.
Patch available sinceNo dated patch-availability record in held sources. The index holds reference URLs without dates and only the current revision of the CVE record, so the day a fix first existed cannot be derived. Only the versions it landed in.

Exploit Status & Known PoCs a ladder, not a score

Current rung: Nothing observed in held sources.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published
  • RUNG 3Exploited in the wild · CISA KEV listed
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, the CNA8 HIGHreceipt
Exploit probability0.00479 · top 59% of all CVEsreceipt
Blast breadth1 product across 1 vendorderived
Assigned byGitHub_Mreceipt
Recorded changes30 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productvllm-project vllmreceipt
Published rangesvllm >= 0.5.2receipt

A rung lights from a row in the index, never from an assessment. "Held sources" is the true scope of the claim: this index reads the CVE record, NVD, CISA KEV, FIRST's EPSS and public proof-of-concept repositories, and it does not observe attacks.

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Attack path

Adjacent networkrequires low privilegesvllm-project vllmCWE-502 deserialization of untrus…Full compromise (C/I/A)C:H / I:H / A:Hexploits CWE-502data compromise

What it is stated by the CNA

vLLM is an inference and serving engine for large language models. In a multi-node vLLM deployment using the V0 engine, vLLM uses ZeroMQ for some multi-node communication purposes. The secondary vLLM hosts open a `SUB` ZeroMQ socket and connect to an `XPUB` socket on the primary vLLM host. When data is received on this `SUB` socket, it is deserialized with `pickle`. This is unsafe, as it can be abused to execute code on a remote machine. Since the vulnerability exists in a client that connects to the primary vLLM host, this vulnerability serves as an escalation point. receipt

Read the rest of the CNA's description

If the primary vLLM host is compromised, this vulnerability could be used to compromise the rest of the hosts in the vLLM deployment. Attackers could also use other means to exploit the vulnerability without requiring access to the primary vLLM host. One example would be the use of ARP cache poisoning to redirect traffic to a malicious endpoint used to deliver a payload with arbitrary code to execute on the target machine. Note that this issue only affects the V0 engine, which has been off by default since v0.8.0. Further, the issue only applies to a deployment using tensor parallelism across multiple hosts, which we do not expect to be a common deployment pattern. Since V0 is has been off by default since v0.8.0 and the fix is fairly invasive, the maintainers of vLLM have decided not to fix this issue. Instead, the maintainers recommend that users ensure their environment is on a secure network in case this pattern is in use. The V1 engine is not affected by this issue.

NVD's analysis a second authority

weakness
CWE-502
affected versions
vllm >= 0.5.2
also scored by
[email protected] 8 CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

check it yourself github.com github.com github.com receipt

Movement the material steps

7 May 20250.00082
15 Jun 20260.00485 · scoring model v2026.06.15
9 Sep 20260.00479

This score more than doubled inside 72 hours. Both observations are in the full history below.

Show all 30 observations
7 May 20250.00082
12 May 20250.0013
27 May 20250.00151
7 Jun 20250.00276
13 Jul 20250.00277
31 Jul 20250.00508
1 Aug 20250.00718
5 Sep 20250.00421
2 Oct 20250.00232
3 Oct 20250.00304
14 Oct 20250.0045
18 Nov 20250.00608
21 Nov 20250.00367
22 Nov 20250.0045
10 Dec 20250.00482
9 Jan 20260.00398
20 Jan 20260.00487
30 Jan 20260.00644
20 Feb 20260.00652
2 Mar 20260.01306
21 Apr 20260.01068
23 Apr 20260.01306
22 May 20260.00432
14 Jun 20260.00133
15 Jun 20260.00485
6 Jul 20260.00502
24 Jul 20260.00503
27 Jul 20260.00513
7 Aug 20260.00537
9 Sep 20260.00479

30 observations held. A highlighted step crossed a promotion threshold. A step marked with a scoring model moved because the instrument was replaced, not because the vulnerability changed. receipt

The full biography

EPSS 0.00479Published2025-05-06Index as of2026-09-09

Exploit probability more than doubled between 2026-06-14 and 2026-06-15 (0.00133 → 0.00485) and the record had been public for 1 year, 4 months when this index was last written.

Published 2025-05-06 receipt · Index as of 2026-09-09 derived

The pattern, elsewhere

This record is one instance of CWE-502, deserialization of untrusted data. The index holds 3288 prior instances of this class, 76 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2022-41082 · Microsoft Exchange Server 2013 Cumulative…matches 8 of 9KEV listed · 2022receipt
CVE-2026-45659 · Microsoft SharePoint Enterprise Server 2016matches 7 of 9KEV listed · 2026receipt
CVE-2023-21529 · Microsoft Exchange Server 2013 Cumulative…matches 7 of 9KEV listed · 2023receipt
CVE-2023-43208matches 6 of 8KEV listed · 2023receipt
CVE-2022-31199matches 6 of 8KEV listed · 2022receipt
CVE-2021-35464matches 6 of 8KEV listed · 2021receipt

"Matches n of m" counts the attributes the two records can both be compared on: the CVSS metrics they share a version of, any weakness class beyond this one, and the vendor. fit-rules@v1

3288 records in this class held. The six above are drawn from the ones CISA has listed as exploited, ranked by how much of the record matches this one. That is why every one of them is KEV-listed: the pool is, so the colour on those spokes says nothing the pool has not already said.

No curated product neighbourhood is held for this product, so the records above are the nearest this index can name. The neighbourhood table covers a small set of products and is extended by hand.

Siblings and hubs

Records related to this one

Its defect family

vllm-project vllm

Of the 5 records in this family that state one, this holds the lowest EPSS percentile: 0.4322.

Grouped by shared product and weakness, not by shared vulnerability. Each record's own state is on its own page.

Family membership: held values

This record is one of a group, and the group's page describes all of them. This page is kept and dated, and the defect family's own page is the one we offer for indexing: the whole group.

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What usually comes next

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