CVE-2024-11041: vLLM Deserialization of Untrusted Data vulnerability

Should you act?

Critical and remotely reachable

No known exploitation yet, but it is network-reachable without credentials. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.

• Not in CISA KEV, but CISA’s SSVC assessment records a public proof-of-concept, so attack code exists.
• EPSS 1.7%, percentile 77: FIRST’s model estimates a 1.7% chance of exploitation activity in the next 30 days, higher than 77% of all scored CVEs (moderate). EPSS is a probability, not a verdict.
• Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
• Only applies if your dependency tree includes vllm (PyPI) <= 0.6.2, no fixed version listed. Check your lockfile, including transitive dependencies.

What it is

vllm-project vllm version v0.6.2 contains a vulnerability in the MessageQueue.dequeue() API function. The function uses pickle.loads to parse received sockets directly, leading to a remote code execution vulnerability. An attacker can exploit this by sending a malicious payload to the MessageQueue, causing the victim's machine to execute arbitrary code.

From the GitHub advisory

vllm-project vllm version v0.6.2 contains a vulnerability in the MessageQueue.dequeue() API function. The function uses pickle.loads to parse received sockets directly, leading to a remote code execution vulnerability. An attacker can exploit this by sending a malicious payload to the MessageQueue, causing the victim's machine to execute arbitrary code.

Weakness type: CWE-502.

Product: vllm (PyPI) · Assigned by: @huntr_ai · Published: 2025-03-20

Affected and fixed versions

Severity scores

• Attack vector: network (remotely reachable)
• Attack complexity: low
• Privileges required: none (no login)
• User interaction: none
• Scope: unchanged

CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.

Exploitation and urgency

• CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
• CISA SSVC assessment: exploitation poc, automatable yes, technical impact total.
• FIRST EPSS (model of 2026-10-21): 1.72% probability of exploitation activity in the next 30 days; percentile 77.

Timeline

• 2025-03-20 — CVE record last updated
• 2025-03-20 — CVE record published by @huntr_ai
• 2025-03-20 — GitHub-reviewed advisory GHSA-5vqr-wprc-cpp7 published (critical)

Sources and references

Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.

Vulnerability records

1. GitHub Advisory GHSA-5vqr-wprc-cpp7 github.com
2. CVE.org record CVE-2024-11041 cve.org
3. NVD entry CVE-2024-11041 nvd.nist.gov

Other references from the CVE record and advisory

1. huntr.com huntr.com
2. github.com github.com

Critical PyPI advisories · Today’s Security Digest