How severe is CVE-2025-64513?

No CVSS score has been assigned to CVE-2025-64513 yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by CVE-2025-64513?

CVE-2025-64513 affects the following packages: github.com/milvus-io/milvus (Go), github.com/milvus-io/milvus (Go), github.com/milvus-io/milvus (Go), github.com/milvus-io/milvus (Go). Ecosystems affected: Go.

How do I fix CVE-2025-64513?

Update github.com/milvus-io/milvus to 2.4.24 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2025-64513 is resolved across your whole dependency graph.

How do I detect CVE-2025-64513 in my Go dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/milvus-io/milvus, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate CVE-2025-64513 if there is no patch (or I can't update yet)?

If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

How does O3 Security protect against CVE-2025-64513?

O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like CVE-2025-64513 can be triaged on real exposure rather than presence alone.

Is CVE-2025-64513 actively exploited in the wild?

No public exploit code has been indexed for CVE-2025-64513 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for CVE-2025-64513?

CVE-2025-64513 has an EPSS (Exploit Prediction Scoring System) score of 1.1%, placing it in the 63th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is CVE-2025-64513?

CVE-2025-64513 is classified as Improper Authentication (CWE-287). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was CVE-2025-64513 published, and has it been updated?

CVE-2025-64513 was published on November 10, 2025 and was last updated on August 12, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

CVE-2025-64513: milvus Auth Bypass

Exploitation Status

No confirmed exploitation observed yet

CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
A successful exploit gives an attacker total control of the affected component, not partial access.
CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2025-64513.

EPSS Exploitation Probability

via FIRST.org ↗

1.1%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs63th percentile — riskier than 63% of all scored CVEsHighest risk

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Real-World Exposure

4 pkgs affected

🐹github.com/milvus-io/milvus🐹github.com/milvus-io/milvus🐹github.com/milvus-io/milvus🐹github.com/milvus-io/milvus

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.

Description

Milvus is an open-source vector database built for generative AI applications. An unauthenticated attacker can exploit a vulnerability in versions prior to 2.4.24, 2.5.21, and 2.6.5 to bypass all authentication mechanisms in the Milvus Proxy component, gaining full administrative access to the Milvus cluster. This grants the attacker the ability to read, modify, or delete data, and to perform privileged administrative operations such as database or collection management. This issue has been fixed in Milvus 2.4.24, 2.5.21, and 2.6.5. If immediate upgrade is not possible, a temporary mitigation can be applied by removing the sourceID header from all incoming requests at the gateway, API gateway, or load balancer level before they reach the Milvus Proxy. This prevents attackers from exploiting the authentication bypass behavior.

Affected Packages

4 total 4 fixed

Ecosystem	Package	Vulnerable range	Fix
🐹Go	`github.com/milvus-io/milvus`	≥ 0.10.4&&< 2.4.24	2.4.24`go get github.com/milvus-io/milvus@v2.4.24`
🐹Go	`github.com/milvus-io/milvus`	≥ 2.5.0&&< 2.5.21	2.5.21`go get github.com/milvus-io/milvus@v2.5.21`
🐹Go	`github.com/milvus-io/milvus`	≥ 2.6.0&&< 2.6.5	2.6.5`go get github.com/milvus-io/milvus@v2.6.5`
🐹Go	`github.com/milvus-io/milvus`	all versions	0.10.3-0.20251107071934-6102f001a971`go get github.com/milvus-io/milvus@v0.10.3-0.20251107071934-6102f001a971`

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/milvus-io/milvus, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update github.com/milvus-io/milvus to 2.4.24 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2025-64513 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like CVE-2025-64513 can be triaged on real exposure rather than presence alone.

Tailored to CVE-2025-64513. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

Milvus is an open-source vector database built for generative AI applications. An unauthenticated attacker can exploit a vulnerability in versions prior to 2.4.24, 2.5.21, and 2.6.5 to bypass all authentication mechanisms in the Milvus Proxy component, gaining full administrative access to the Milvus cluster. This grants the attacker the ability to read, modify, or delete data, and to perform privileged administrative operations such as database or collection management. This issue has been fixed in Milvus 2.4.24, 2.5.21, and 2.6.5. If immediate upgrade is not possible, a temporary mitigation

O3 Security · Impact-Aware SCA

Is CVE-2025-64513 in your dependencies?

O3 Security finds CVE-2025-64513 across Go dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.

Scan my dependencies How O3 SCA works

CVE-2025-64513 — milvus