[NEW] [medium] vllm: Multiple vulnerabilities allow Denial of Service
An attacker can exploit multiple vulnerabilities in vllm to perform a Denial of Service attack.
CSIRTS triage
- What
- Multiple vulnerabilities allow an attacker to perform a Denial of Service attack.
- Who is affected
- Attackers exploiting vulnerabilities in vllm.
- Urgency
- Remediation is medium urgency due to the potential for Denial of Service attacks.
- Action
- Apply the latest patches for vllm.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2176
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-542340.34% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 26% of all scored CVEs.
- Low exploitation riskCVE-2026-555140.37% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 29% of all scored CVEs.
- Low exploitation riskCVE-2026-555740.32% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 24% of all scored CVEs.
- Low exploitation riskCVE-2026-556460.29% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 21% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-54234 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-55514 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-55574 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-55646 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- highCVE-2026-55574: vLLM is a high-throughput and memory-efficient inference and serving engine for LLMs. Prior to…nvd
- mediumCVE-2026-55514: vLLM is a library for LLM inference and serving. From 0.12.0 to before 0.24.0, sending a pure …nvd
- highCVE-2026-54234: vLLM is a high-throughput and memory-efficient inference and serving engine for LLMs. Prior to…nvd
- mediumCVE-2026-55646: vLLM is an inference and serving engine for large language models. From 0.22.0 to 0.23.0, the …nvd
Recent advisories for vllm
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- high[UPDATE] [high] vllm: Vulnerability allows code executioncert-bund · 2026-07-10
- high[UPDATE] [high] vllm: Vulnerability allows bypassing security measurescert-bund · 2026-07-07
- medium[UPDATE] [medium] vllm: Vulnerability allows code executioncert-bund · 2026-07-07
- medium[UPDATE] [medium] vllm: Multiple vulnerabilitiescert-bund · 2026-07-07
- medium[UPDATE] [medium] vllm: Multiple vulnerabilitiescert-bund · 2026-07-07
- highCVE-2026-55574: vLLM is a high-throughput and memory-efficient inference and serving engine for LLMs. Prior to…nvd · 2026-07-06
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